We've learned that Mr. Phan Huy Thúy, a cultural researcher and a former head-official at the Archaeological Institute, had paid attention to that set of sketches and had sent the microfilm to the States (circa 1972) to have it developed into several other copies.
Waxaan ogaanay in Mr. Phan Huy Thúy, oo ah cilmi baare dhaqameed horeyna madax u ahaa Machadka Archaeology, inuu fiiro gaar ah u lahaa sawiradaas isla markaana u diray microfilm-ka Mareykanka (ku dhawaad   1972) in loo sameeyo dhowr nuqul oo kale.