Die burn due to improper annealing
and / or under polishing the planchets .
Accompanied by slightly low pressure in striking .
Extremely common in RCM PL silver coinage
( especially Dollar pieces) of the 1950s, 1960s.
and / or under polishing the planchets .
Accompanied by slightly low pressure in striking .
Extremely common in RCM PL silver coinage
( especially Dollar pieces) of the 1950s, 1960s.