A die chip maybe 2? A BIE 1934 ddo 3 for copper coins ddo4 Wexler 1963 what is that on 3 1955D ? RPM? Couldn't find
The 3 on the 1934 appears to be damaged. Looks like it has talen a hit on the inside curve pushing it to the right giving the appearanch of extra thickness and the "bulge".