Cant see the pic. no 40% or 90% regular mint strikes contain any silver.JasonB said:1 - '72 Silver no mintmark (Is this 40% of 90% silver? It appears to be 90%)
Darth Walker said:65GT350 Not totally accurate. There is a very rare error of some halves 1977 and I do not remember if 1972 or 1971 minted in silver 40%.
Chances of finding them almost none but they do exist
DW