1882 Gold Half Eagle ungraded but XF+++ looks uncirculated 0 wear gr8 Luster

Description

This coin has been in a safety deposit box for wrapped in a plastic bag for 70 years that I know of. Though it looks uncirculated to me and the jewellers I took it to as very fine+++. I cannot see any surface or edge wear. Tested as being original and verified gold content. Beautiful luster. Very high relief. No edge wear.
Not as contrasty as the photos indicate due to poor lighting.