Haj Saleh Bathhouse, located in the historical fabric of Saqqez city, dates back to the Zand period. Its entrance is situated in the city's traditional bazaar. The construction style of the building is Isfahani and features unique stucco decorations. One of the notable and significant stucco reliefs in the bathhouse is the hunting scene, which has undergone extensive deterioration. This relief consists of three layers: two lime-based layers and one paint layer.
In this study, through laboratory examination, the materials used in the stratigraphy of the relief were technically identified. Subsequently, the deterioration patterns affecting the artwork were analyzed. The conservation and restoration process of the hunting scene is also detailed: following mechanical and chemical cleaning, delaminated areas were consolidated using an injection method. A slurry made from dental gypsum combined with 5% Plextol in water was injected with the aid of a pillow (bladder) technique to reattach and strengthen the lifted layers.
The missing parts were reconstructed using a mixture of gypsum and 5% Plextol, followed by chromatic reintegration with watercolors to match the surrounding areas and faded pigments. Finally, the entire artwork underwent final consolidation using 5% Plextol solution.

Since ancient times, the issue of registration in various areas of life has always been with mankind. Registration is a cultural issue and is considered a reflection of various cultural areas of mankind. Every work left by man in the past, whether it was in the form of an image or a line, reflects and illuminates a world of material and spiritual information and knowledge like an honest mirror without any pretense or imperfection. The characteristic of all registered subjects throughout history has been their "value and importance" for greater permanence and transmission to the periods ahead of them, and this transfer of value to future generations continues today. In the field of cultural heritage and the protection of historical buildings and cities, the issue of registration is very valuable and important. A noteworthy point in this field is the relevance of re-registration of values. Because we re-register the material or spiritual work registered during the creation period so that it is protected and subject to legal protection and public attention, and most importantly, in the process of sustainable development and handed down to future generations. This article, which is the result of objective observations and library and document studies, describes in an analytical-descriptive manner the nature and importance of registration and how the relationship between registration and value, conservation, and sustainable development is defined. Another goal of this article is to examine the role of registration in the protection of cultural heritage values and its place in the sustainable development process.

Archaeological excavations at the ancient site of Haft-Tepe commenced in the winter of 1965 under the direction of Dr. Negahban and continued for fourteen seasons until 1978. These excavations led to the discovery of a significant assemblage of architectural remains and diverse historical artefacts. Among the finds were various ceramic vessels and objects, a collection of clay tablets, seals and seal impressions, a range of bronze artefacts, numerous fragments of painted mud plaster, coffins, stone objects, clay busts, as well as decorative items such as necklaces, plaques, glass vessels, and bone tools. A considerable portion of these artefacts is today preserved in the Haft-Tepe Museum. In response to the quantity and importance of the discoveries, the idea of establishing a museum adjacent to the archaeological site was raised during the second season of excavations. Construction began in 1970 and, upon completion, the museum was inaugurated in the spring of 1973. With the outbreak of the Iran–Iraq War in 1980, the museum was closed; part of its prominent collection was transferred to Tehran, while other objects remained in situ. In the spring of 2001, research and conservation activities were resumed under the auspices of the Chogha Zanbil - Haft Tepe Cultural Heritage Base. One of the first major undertakings during this period was the reorganisation of the museum’s collection, carried out in collaboration with graduate students of conservation from the University of Art, Esfahan. In this process, artefacts that had previously been kept in unsuitable and scattered conditions were collected, classified, recorded, documented, and systematically arranged. This initiative laid a crucial foundation for the long-term preservation and safeguarding of the invaluable heritage of Haft-Tepe.

This research investigates methods for conservation, restoration, and reinforcement of the Urartian inscription of Seqindel. It also aims to propose feasible recommendations for improving the preservation and stabilization conditions of the inscription and consequently, the historical site itself. The Seqindel inscription was discovered in 1951 CE near the village of Seqindel, beside a complex archaeological site. It stands as a significant artefact from the Urartian era in northwest Iran, dating back approximately 2750 years. Stone inscriptions are inherently vulnerable to environmental factors that can lead to deterioration. To address this concern, the research incorporates structural studies, pathology assessments, and analyses of the inscription's current condition. The results indicate that priority should be given to emergency stabilization and consolidation to prevent the collapse of the inscription, followed by practical measures for ongoing protection, and finally, preventive conservation. Considering the inscription's location approximately 2 kilometers from the village of Saqindel, the following key recommendations are proposed for its preservation and promotion: 1) Community participation in protection efforts, 2) Tourism enhancement and deterrence of unauthorized excavations, 3) Road construction for improved accessibility,4) Site access and signage development, 5) Natural stone staircase construction, 6) Design and insulation of informative signage, 7) Vegetation revitalization in the adjacent valley.

Red mineral pigments, including minium, vermilion and ocher, have historically been some of the most important and widely used colors ranges in painting, gilding, tabulation and marking verses. This color spectrum in the artworks from previous centuries has shown acceptable stability, with its brightness well-preserved. The preparation of color, as one of the most a significant tools for artists, has long been an important issue, leading to the documentation of  color preparation methods in book design in book design treatises. Minium processing is mentioned as a red pigments in three treatises: Umdeh al-Kottab, Bayan al-Sana, at and Qanun al-Sovar. In the current research the text of these treatises were reviewed, and a comparative study of minium identified in a number of illustrated manuscripts from the Safavid period was carried out using colorimetric method. Initially for this purpose, in the first step, minium was mixed with specific ratios of vermilion to prepare red color tables based on minium. Eight samples of selected miniatures from Safavid period illustrated manuscripts (including 5 illustrated manuscripts from the National Museum of Iran) and 17 prepared color samples were subjected to spectral and color analysis using a spectrophotometer. The color difference values of the prepared samples and the historical samples were then calculated. The results indicate that there is an acceptable color difference between the prepared colors and the historical samples. Therefore, this method can be used in the reconstruction and homogenization of the red spectrum resulting from the minium pigment.

Stone structures are susceptible to weathering and erosion over time, necessitating the identification and elimination of damaging factors to ensure their preservation. This research focused on diagnosing the damage to the tomb of Xerxes located at the historical site of Naqsh-e Rostam through a multidisciplinary approach encompassing library research, field observations, laboratory analyses, and geological studies. Petrographic studies revealed that the rocks comprising the tomb belong to the Seruk Formation. The sedimentary sequence within this formation exhibited thick and light-colored limestone layers. Utilizing the geophysical technique of Ground Penetrating Radar (GPR), two major fractures were identified along the boundaries of the tomb. These fractures predominantly followed north-south and east-west orientations. The intersection of these fracture sets, combined with the layering surfaces, resulted in the development of dissolution phenomena, leading to the formation of dissolution holes and cavernous porosity on the structure. Additionally, field studies investigated the presence of plants and cyanobacterial lichens on the tomb.