KM#164 1956. Is it a straight circulation or a Type B rev. and how do you tell the difference?
I take it that it's not a Double-bar 5.

KM#164 1960. Again, circulation or Type B rev?

They look much better (shinier) in hand. The 1956 has a small ding on his forehead and the 1960 has a bit of crud to the left on the obverse which I will try to remove with acetone (unless any of you think that would be unwise).
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