1942 Aluminum Penny Found

I still think it is a common well-circulated 1942 cent that was coated with Mercury by some unknowledgeable kid in a school chemistry lab in the 1950's or 60's.

(I did a few myself back in the day!)

O.P. reported weight at 0.93 grams.
Mushy design detail diagnostic of copying (=forgery).

brudea - You could be right or wrong.

From United States Pattern Coins (10th ed): "Regular 1942 Lincoln Cent dies are said to have been used to strike coins in pure zinc, copper and zinc, zinc-coated steel, aluminum, copperweld, antimony, white metal, and lead, among other materials." It would stand to reason that the same die pair was used for all compositions. The photos are far too blurry to tell, but the pictured coin does not appear to match J2079. Any of the listed compositions would result in a well-struck example, unlike the pictured coin. Given the obvioius weight differential, it is hard to imagine an aluminum cent circulating for three quarters of a century unnoticed. Any number of NDT composition tests could answer the composition question in a couple minutes.

Postal scales weigh to a tenth of an oz, .1 oz would be 2.8 grams or about what a normal copper cent weighs. .2 oz would be 5.6 grams or more than what a nickel weighs. You need to find a better set of scales.

If it read .2 ounces it's waaaaaaay too heavy to be aluminum. If it weighs 2 ounces you may be in on Jupiter.

Why would you weigh a very light coin at the UPS Store in the first place? You need accuracy in 100ths of a GRAM, not in ounces.