1943-Steel Blanks And A Punched Out Grid.

Are these two lengths the widest point as measured by the micrometer, ie diameter? Converting these two values gives me 18.948 and 18.859 (using 0.7425"). Does anyone know the diameter of a cent planchet before the rim is upset? I know it must be greater than the 19mm diameter of a struck cent, since edge metal is pushed inward to create the raised rim. By your measurements, I would venture a guess these blanks weren't used to coin steel/zinc cents--perhaps something else?

Well, I don't have any unstruck planchets, whether w/upsetting or without--I'll let someone who really knows answer. I just seem to recall that Lincoln Cent planchets spread slightly during a strike, but this spread is contained by the collar to 19mm. It just seems that a cent blank would need to be larger than 19mm to raise that rim during upsetting--but please correct me if you have the facts.

anacs can certify them. Lots of these were sold for scrap and used in roofing.

Kurt,
Agreed, but neither is larger than a struck cent, it expands with the strike.

thanks to all for the input:I can see that by KURTS calculations (he used the smaller of the two ) that this measurement would seem that the blanks might not be from zinc coated steel intended 43's. however I have noticed a few things in the replies here; these blanks have a rim on them approx:0.0005,greater than the blank, the rim in thickness is between 0.0053.5-0.0055.5. a LMC dated 2000 has a rim thickness of between 0.0053-0.0064, leading me to know first, that not only does the blank I have already have an established rim, I would speculate that during the die pressing of the coin the diameter would become greater and the rim thickness or measurement would also increase. I am not an expert, however I would like the "Lincoln experts " combined poll of the facts. If I knew ,factually, how the process was performed I could better answer some of these questions, and be better informed, MORGANS DAD

Morgans dad, I'm not an expert either...I'm just thinking out loud and hope they are real. I'll look forward to hearing more from the experts--and learn something new.

Conder101, This is what I am learning, that it was not an uncommon thing to see or obtain back in the 70's, this is when the collector I purchased this from told me he purchased a large collection and this was in that collection.I also agree with the fact, after close inspection, that like I originally stated the zinc coating was dragged down when the planchet was punched out, and realize the coating was only pulled down so far leaving a steel "rusty space"in the middle of the blanks and the grid.I want to thank-you and many others for your opinions and expertise in this matter. I am going to look into sending it to anacs or the likes to get it authenticated. BE WELL, MORGANS DAD...