The importance of architectural decorations and particularly the remained inscriptions that contain valuable information from distant times is not hidden from anyone. Therefore, it is very vital to preserve these precious artworks. The upcoming research is related to one of the oldest and rarest gypsum-based architectural decorations worked with a rare technique called Tokhmeh-Gozari. The Tokhmeh- Gozari technique have been worked in a limited number due to the difficulty in implementation, and only few number of them are passed to us. This historical work is a written and two-color inscription in Thuluth script in the Sayyid Fathullah mausoleum in Varamin. This mausoleum, which was registered in the list of national monuments in 2004, belongs to the Ilkhanid era. Also, the mentioned inscription with dimensions of 65 * 150 cm, was executed in three lines and had damages such as structural cracks on the surface along with the chemical damages. According to the decision of the trustees of the mausoleum to destroy the inscription, and also knowing that this inscription is among the oldest gypsum-based cast decorations with Tokhmeh-Gozari technique, the aim of this research is to preserve the work in its original location (the northern side of the mausoleum) and
restore it according to the best possible method. In order to achieve the most appropriate method of restoration of this inscription, the ethics
of restoration interventions were adjusted according to the artwork. And the practical part of the work, respectively included; Structural consolidation of the inscription, peeling off the inscription that led to the discovery of another inscription, mechanical and chemical cleaning, consolidating the mortar structure using fabric paste, surface stabilization, filling the lacuna using colored gypsum mortar, framing the inscription. Also, after finishing the restoration process of the artwork, it became possible for the audience to read the inscription carefully and to comprehend its conceptual content thoroughly, and the date of its creation, was revealed.

Nishabur city, located in Razavi Khorasan, is one of the oldest cities in Iran, which contains various historical sites, including Shadiakh. In 2003, during archaeological excavations, a large number of gypsum-based ornaments were found in this area. One of the most important parts of this historical site is known as Public Hall. This hall consists of four porches overlooking an octagonal space in the middle, which leads to the adjacent spaces through four doors and four corners. These five pieces discussed in the current research also belong to the public hall part of this collection. This research is organized with the aim of finding the most suitable method of conservation and restoration of these valuable ornaments. The main damages on these pieces include deep cracks, surface contamination such as dust, dirt, spider webs, unprincipled repairs during excavation, missing parts, deep holes, scratches, and etc. In the following article, after examining the appearance and stating the damages on the parts, the intervention ethics are discussed and restoration procedures were carried out. These procedures include mechanical and chemical cleaning using bistoury and distilled water, stabilization using 5% Plextol in ethanol, consolidating cracks and deep holes using textile paste, testing the color of gypsum mortar and finally using Gypsum mortar to cover the cracks and bricks of the support.

An Urartian cuneiform rock inscription was reported in March 2021 in Gharejelou, close to Shahverdi Gheshlagh village, Eastern Azerbaijan Province, Iran. This site has been previously surveyed and also the legal excavations took place. The epigraphy of the inscription belongs to the first years ofUrartian reign and the last half of it. As the close by Urartian inscriptions belong to Argishti II it is possible that this inscription as well was written in the same era. The inscription is badly damaged mainly by sediment. The damages make the actual reading of the inscription almost impossible. This contribution is also presented at the Conference of Van Museum as Urartu and Beyond and will be published in the conference book.

Due to the instability and sometimes sensitivity of archaeological objects, conservation and restoration of them usually require a complex procedure along with basic studies and pathology in the restoration process. Since pottery objects are more stable than other objects, they can be restored after preliminary investigation regarding the level of strength and hardness of surface sediments, if there is no special problem. In this report, we introduce and describe the conservation and restoration process of a number of Zanjan salt men collection pottery, transferred from the Zulfiqari Museum of Zanjan to the pottery department of the Research Center for Conservation of Cultural Relics for conservation and restoration operations. These objects, which were sometimes cleaned and temporarily patched at the excavation site, were thoroughly checked and all connections were opened. The parts were cleaned separately using various mechanical and chemical methods and after finding the correct parts, the connection was made again. Finally, the parts that needed to be reconstructed were reconstructed with plaster following the pattern designed for this collection and considering the basics of restoration.

The ceramic objects are one of the most important evidence of the Neolithic era. Due to the physical and mechanical damages, they need proper conservative strategies. The reconstruction of historical ceramic objects with a large number of missing parts has been a challenge for conservators. The importance of this matter is owing to the historical, technological, and aesthetic values of objects. So, their conservation and reconstruction must be in line with the conservation protocols to conserve their integrity. In this paper, we describe reconstructing process of a historical ceramic object belonging to the Neolithic period recovered from Silve Tepe in Piranshahr City in the northwest of Iran. In this process, we are trying a new method for casting on a sample with numerous missing parts. After preliminary studies of the sample, the reconstruction of it is described.

The Tepe Silveh site is one of the ancient sites in the Piranshahr region. During excavations conducted in 2015, several terracotta pots were uncovered. The purpose of this project is to restore and protect two terracotta artifacts belonging to this site, This project is therefore of great importance Silweh hill has been completely destroyed in the exploitation plan of Silweh dam and these pottery are the only remaining information from this ancient site. The project aims to prevent further damage to these artifacts in the future by adopting the most appropriate  conservation methods.These pottery pieces were found in a very poor and unstable condition, and immediate strengthening was among  the most essential initial measures. After conducting the necessary comparative historical studies, efforts were made to adopt the most efficient intervention methods. These pottery were found in a very disorderly and unstable condition, and immediate strengthening was among the most essential initial measures. After conducting the necessary comparative historical studies, efforts were made to adopt the most efficient intervention methods.

Many projects in the field of Protection, conservation and finally restoration of historical monuments are carried out in the country every year, However, there is unfortunately no suitable platform for sharing the practical experiences in this field within the country, which could significantly enhance the quality of these protection and restoration efforts nationwide. Emergency reinforcement of architectural ornaments is often necessary during the restoration of historical buildings. For this purpose, the restorer of architectural ornaments must create safe conditions to preserve the existing ornaments during the restoration of the building. Eram House in Yazd is one of the Qajar-era buildings in Yazd city that is currently about to be restored and repurposed. This
building, in the Central Room, features plasterwork, mirror and glass ornaments, as well as wall paintings with plant motifs and inscriptions. Due to the damage in the various layers of the architectural ornaments restorers faced challenges in reinforcing the structure and restoring the deteriorated parts of the building. Structural restoration measures posed a risk of destroying these ornaments; since the cracks indicating structural movement had caused the ornaments to detach and loosen from their underlying layers, which include: support (brick), scratch coat (straw), and top-layer (fine coat), all of which require reinforcement. The entire surface of walls, except for the ceiling wall in the Eram House, has an additional layer of gypsum plaster coating, which has obscured parts of the gypsum stucco ornaments and murals. Therefore, it is necessary to identify the hidden ornaments in different parts by conducting soundings in the walls of the Central Room of Eram House.

The "Clogs of the Kaaba" at the Iran Carpet Museum is a pair of metal/ copper alloy shoes by Parviz Tanavoli for an outdoor installation. The work is part of a memorial chapel designed minimalist style within the museum’s grounds. The clogs are crafted to a life-size scale, with their surfaces textured with fine and delicate grooves to enhance their aesthetic and visual appeal. The artist has also applied a dark artistic patina to the surface of the clogs. The interior of the clogs has accumulated dust, soot, and debris from the surrounding greenery. Additionally, prolonged exposure to environmental conditions such as annual rainfall, seasonal temperature variations, and urban pollutants such as acid rain has affected their condition on the ground. The surface of the clogs shows green corrosion products and carbonate deposits. the aim of this operation is to stabilize the clogs and prevent further exposure to harmful urban environmental factors. In order to evaluate and document the current condition, digital photography was conducted on both a macroscopic and microscopic scales. Surface sediment removal was carried out using manual mechanical methods with a scalpel and ultrasonic device. The poultice method was applied in a controlled and limited manner to remove thick sediments using Rachel's salt solution and%2 hydrochloric acid. To protect the surface, a %3 BTA (benzotiazol: C6H5N3) solution was used, followed by a coating of epoxy polyamide solution.