Among the most significant historical and ancient sources in Iran are local handwritten deeds and manuscripts. Through their examination and study, valuable historical information can be obtained. These documents contain detailed accounts of geographical, economic, social, cultural heritage elements, customary laws, and traditional customs. Today, they serve as valuable and primary historical resources. In this context, the province of Isfahan stands out as one of the richest regions in terms of historical depth and the tradition of deed writing in Iran’s local and traditional history. Notably, the handwritten deeds related to the Gourt neighborhood in eastern Isfahan (Eastern Jay) have not yet been studied from historical, archaeological, or codicological perspectives. This research aims to present the writing style, structure, and valuable historical content of these documents, introduce them by their original and traditional names, and highlight their importance as precise historical and archaeological sources. It also seeks to showcase the artistic features used in their illustration and decoration as part of the region’s art history. The central question of this study is: How can we extract historical and artistic information from handwritten deeds and evaluate them as credible historical sources? To achieve this goal, three historical manuscripts from the Gourt neighborhood in eastern Isfahan have been scientifically and analytically examined: Deed of the Dove Tower at Darb Deh (Aziz Tower), Deed of the Dove Tower of Agha Hossein, (New Tower) Deed of the Gourt Farm Qanat. These manuscripts belong to a private local collection, preserved as family heritage, and have all been registered as movable historical artifacts by the Cultural Heritage Organization of Isfahan.