These are one of the oddball newer pieces that has been discussed, it is a 41' date code Hemi 12 that has been embossed with hand done stamps rather than the newest machine embossing of the era. The N, G, S, R, and 1, and 2's are all quite distinctly hand done on these and is unlisted in any guide. As far as I have seen, this hand engraving was done only on 41 date coded pieces. VVNM to mint cond. $7 + $4.50 shipping in USA.