Canadian 1977 1981 And 1941 Penny

Hi eddio

The 1977 is possibly an acid bath coin, though a comparison of it's diameter and weight to a regular 1977 penny would give us more information.

The 1981: I've actually seen this effect before -- If the coin is wrapped in or laying against a plastic or rubber of some sort, similar to bubble wrap or whatnot, and is subjected to heat or lays in the hot sun or even just remains in contact with the plastic long enough, it can discolour the metal in a pattern like you see on your penny. Rubber particulary is nasty on metals, especially your silver. I've seen people wrap coins or silverware with rubber bands and it ends up leaving this really crappy black line across the silver -- I think it's caused by the sulphur in the rubber. By the way, don't leave your coins laying in your eggs for the same reason (Though why you'd be tempted to is a little beyond me ...lol).

1941: Yup, extra metal. The nicest one of the lot, IMHO.

Hi eddio

Hmm, okay, if your coin guy says the 1977 is genuinely rippled, I'll believe him. So it must be something else. Looking at the picture again reminded me of something from deep in the recesses of my memory. On old glass -- mostly bottles and whatnot -- you'll sometimes see an odd rippling or "whittled" effect. It's caused by the piece of glass being blown into the mold while the mold was still cool -- usually on the first piece or two of the day. After that is was fine. Could something like happen to coins? I'll be honest, I don't know if metal reacts the same as glass in this respect or whether this particular situation even comes up, but maybe someone with more knowledge than I have will confirm or refute my theory. Anyway, looks like you have 2 legit errors on your hands. Nice!