Here is a check list that the us mint made for other foreign countries in 1944 p some where made of brass.
That's a big informative list. Thanks for sharing. But I have a question for you.. Are you saying that you think your 1944 cent is the wrong planchet?
Ok.. So you're assuming it's on a wrong planchet. Interesting. It will take a lot more than slight color variations to prove it.
Might be nice to build a collection of U.S. made foreign coins. I might try it at the next coin show.
Color alone means absolutely nothing. Copper and copper alloys can tone any number of different colors. Your coin looks completely normal. If you feel it may be on a foreign planchet you will need to do more research, what is the weight of the foreign coins the mint made? Exactly what is the composition? etc. Another thing, while it is debated as to whether it actually happened, in 1944 the mint was authorized to make cents from recycled shell casings. Shell casings made of brass.
Go here and open the comprehensive spread sheet https://minterrornews.com/news-5-13-03-foreigners_in_the_mint.html Then find a foreign denomination, minted in 1943 or 1944 in Philly, that matches the size and weight of your coin that wasn't struck in 95% copper. Visual color observation is a very unreliable way to determine the chemical composition of copper coins. You really need an XRF or SEM/EDS analysis to show that the zinc levels are higher than a normal cent.
It is not on a wrong planchet. Only a penny or a smaller planchet can fit in the penny minting hub etc. Almost all foreign coins are different size and weight than US coins, so the usually lower valued foreign coins don't get mixed in and spent at US value. To be on a foreign planchet your coin would have to be smaller than a penny. If your coin was smaller than a penny and minted, it would be impossible to have full complete penny rims. Your rims are full and complete.
just came across an error 1946, it has a cud and clamshell, also is smaller than a normal planchet, and weighs 2.9 grams, could this one be a for.planchet. yeh, i know i am hitch-hiking on this old one...lol
soon, i got over 150 error coins in today from my last few weeks bidding...lol still cataloging stuff