During the 1940s and 1950s D. Storm Rice and Seton Lloyd, together with the Turkish Antiquity Authority, undertook archaeological excavations in Harrān. With the exception of two preliminary reports and a few articles, the excavations remain largely unpublished.

The 264 coins constitute an independent source on the regional, political and economic history of Harrān. For the Umayyad and early Abbasid period, the coins constitute a source on the pattern of the city's regional integration. Two-thirds of the coins date from the Ayyubid period. The circulation is characterized by a competition of different coinages: first, those which were struck for the political entities to which Harrān belonged; and second, imported coins, i.e. of Byzantine and Rūm-Saljūq origin. Third, copper coins from Northern Syria, despite the fact that the Diyār Mudar and Northern Syria belong to different branches of the Ayyubid dynasty. Two dirhams of the Saljūq prince al-Malik Mas‘ūd, who resided in Mosul between 504/1111 and 511/1118, are historical documents of importance.