Picture or description of lug nuts for mopar rally rims

Good morning and Happy New Year.....it seems that the the left side lug nuts and studs have been replaced to regular righty tightie ones on my dad's 1964 Barracuda....these after market nuts themselves do not seem to be seating correctly and have caused some marking of the original 13 inch rim ....as I am looking to update to a 14 inch rally rim, thought Id ask if the lugs nuts for these wheels are supposed to be uniquely shaped. Anyone with input as to a picture or description as to what I should be searching for please feel free to chime in....with thanks. Greg