Dropped $140 on a 1747 map of the Caspian Sea at a garage sale in Reno, did I overpay?
The seller said it came out of a storage unit and the paper feels right, but I have no clue if the border lines match the real 1747 version. I mostly bought it because the sea is shaped all weird and there is a note in Latin along the top edge. Can someone here tell me what to measure first, or should I just take it to a shop in Sacramento?