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.

It is a study of the microstructure of ancient materials that will be investigated using catholuminescence microscopy. The importance of
this method is in the identification of historical materials based on the observation and analysis of structures that are not observable in other
methods of microscopic studies. The cathodoluminescence properties of materials and their microscopic observation can be used both in the analysis of production technology and concerning the historical origin of materials. This study examined several samples of prehistoric and historic ceramics from Haft Tappeh, ChoghaZanbil, Persepolis and some stones from the Pasargadae foundation. The thermal regime and temperature of the pottery are determined based on the type of crystalline material in the pottery matrix and the phase changes during cooking, to interpret the technology and origin of the pottery. On the other hand, identification of the luminescence characters created by the minerals in the carbonate rocks of the Pasargadae and their similarity to the possible mineral rocks in the area (Abolverdi Mine), can provide useful information in identifying the origin of the rocks used in this building. To determine the microscopic applications of catholuminescence, all the materials studied were first studied using standard laboratory methods, such as optical microscopy, X-ray diffraction and thermal studies to determine the phase changes of crystalline and mineral phases and determine the firing temperature of the pottery. Complementary results based on catholuminescence microscopy indicate the observation of the process of crystalline changes and the heating of the pottery matrix based on the type and quality of the raw materials used and their similarities and differences in the pottery texture. Also, the observation of the microstructures of the rocks based on their mineralogy and microfossils which were contained in it and are not normally visible, provides useful information about the similarity of the types of stones used in the construction of Pasargadae with the rock outcrops from the mines around Pasargadae.

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 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.

The Iron Age in Iran (550-1450 BC) and beyond, represents a period characterized by significant social, cultural, economic and technological transformations during its evolutionary stages. Zavarehvar is an Iron Age settlement site located in the Varamin plain in central region of Iran, where numerous excavations have been carried out by various archeologists in recent decades. During the 2017 excavation at the Zavarehvar site, a number of gray pottery pieces related to burials were discovered. Given the distribution of the Iron Age cemeteries and the limited technical studies conducted on these potteries, our understanding of the production methods such as texture, components, and manufacturing processes is crucial for comprehending the pottery production technology of this specific period. Therefore, the results from laboratory studies can be beneficial in finding the production process of these artifacts. This research aimed to provide more precise knowledge for conducting comparative studies and determining the local origin of these artifacts by examining nine Iron Age pottery samples from this region using inductively coupled plasma mass spectrometry (ICP-MS) and petrographic analysis of thin sections. The results indicated that the main phases of the potteries, based on petrography, include quartz (SiO2), and calcite. The ICP-MS results also largely confirmed some of the petrographic observations. However, a significant part of the chemical clustering of ceramics was not due to heterogeneity in elemental composition, nor to differences in the clay sources used. Additionally, we can say that the potteries are local origin, since the soils studied showed significant similarities in trace elements with the pottery samples, confirming their local origin.