Philadelphia has never used a mint mark on cents.
You're probably seeing a mis-shapen D mint mark. Mint marks before about 1985 were quite a bit smaller and often clogged up in coin dies.
In any case there were well over a billion 1975-D cents struck so your coin is worth a penny.
It's a novelty coin that has no collectible value.
means it was minted in san fransisco California and they stopped doing that in 1974
It's worth 2 cents for the copper.
Proof pennies are only made at San Francisco. It's not a proof. It is just a penny worth a penny.
Value depends on the size of the clip, average value is $3.00-5.00
It's worth about 2 cents for its copper content.
Not sure. I have a 1974 penny with a baseball batter and pitcher stamped in front of lincolns face. The batter's jersey ends in 'TS' Any idea what this coin is?
It's worth about 2 cents for its copper content.
The state was stamped on it after it left the mint. It has no collector value -- novelty value is perhaps 25 cents.
It's almost certainly either a privately-issued piece or a genuine penny that was altered. Either way it has no collector value.
The 1974 copper Lincoln penny typically sells for its face value of one cent in circulated condition. However, if it is in excellent condition or uncirculated, it may fetch a few dollars. Additionally, if it's a rare variety, such as the 1974-S proof penny, it could be worth more. The value may vary based on demand and the specific condition of the coin.
Because the legality of the coins is in doubt and currently are illegal to have, a value can't be given.