1746 LIMA GREAT BRITAIN 1/2 CROWN NGC AU-53. The item "1746 LIMA GREAT BRITAIN 1/2 CROWN NGC AU-53" is in sale since Thursday, March 30, 2017. This item is in the category "Coins & Paper Money\Coins\ World\Europe\UK (Great Britain)\Half Crown". The seller is "russcoin" and is located in San Francisco, California.