Dug my first silver dollar today! Looking at the Redbook it mentions both high relief and normal relief (I assume the engraving). Sounds like a few were minted in 1921 but not practical so melted down those. Satin and Matte finish 1922s out there but does anyone know how to tell those from regular finish? Mine looks shiny on the back but heat exposed on the front so I’m not up on the minor differences to spot straight on.