Your fiscal years are backwards.
Fiscal 1940 would have started Oct. 1st, 1939 and ended on September 30th 1940. Therefore those coins minted for Panama would have been dated 1939 and 1940. There is litterally no way for a coin minted in fiscal 1940 to be dated 1941.
As for the weights, I'm just relying on published data. Though there may be a way to verify with earlier years. When the new Mint director took over in the 30s, she was a political hack and the Directors report was slashed in half to just the absolute bare minimum necessary.
Fiscal 1940 would have started Oct. 1st, 1939 and ended on September 30th 1940. Therefore those coins minted for Panama would have been dated 1939 and 1940. There is litterally no way for a coin minted in fiscal 1940 to be dated 1941.
As for the weights, I'm just relying on published data. Though there may be a way to verify with earlier years. When the new Mint director took over in the 30s, she was a political hack and the Directors report was slashed in half to just the absolute bare minimum necessary.

























