Mahmoud Ahmad Makhamreh is the owner of the oldest shop in the village of Jinba in Masafer Yatta, where he was a merchant, farmer, one of the notables of the village, and a writer of trusts. Residents of the Masafer Yatta, Ber as-Saba and Yatta areas came to buy from his shop and register their trusts with him from the end of the nineteenth century until the beginning of the twentieth century.

The collection includes three notebooks kept by the grandson of the owner of the collection, Nidal Yunes, in which he entered a daily and continuous record of debts and trusts for a shop that was owned by the great-grandfather, Mahmoud Ahmad Makhamreh, in the village of Jinba in Masafer Yatta during the period from 1880 to 1940, and which later belonged to his grandson, Mohammad Yunes. Makhamreh excelled in recording debts and trusts, so he became the person that people approach in the Masafer to write down their trusts. The notebooks show the shape and pattern of financial transactions that prevailed among the residents of the Masafer and the Bedouins of the Ber as-Saba area before the Nakba. The grandson, Mohammad Yunes, succeeded the grandfather, Mahmoud Makhamreh, as the owner of the shop from the 1940s until the 1960s, when the Israeli Occupation Forces carried out their first attacks on the Masafer area, which resulted in the closure of the shop.