This one has me scratching what hair is still on my head A note was with it Orientation may be incorrect
I know what it is because I own one. China 1 Cash 1736-1800 https://en.numista.com/catalogue/pieces1133.html
Yes, but 2 time periods, 2 different emperors. @Heavymetal 1736-1795 Qian Long Tong Bao on the coin = Ch’ien-lung T’ung-pao (Emperor). KM#391. 1796-1820 Jian Qing Tong Bao on the coin = Chia-ch’ing T’ung-pao (Emperor). KM#442.1 This is from a query at NGC World Coin Catalog from 4 days ago. BOTH have Boo yuwan on the reverse. More info at Primaltrek.com. I have 2 of each emperor…Spark “Tong Bao” means “Universal Currency”…added for clarification.
The obv (4 characters) should be rotated 90 degrees clockwise, the rev needs to be rotated 90 degrees counterclockwise.