The 2 p coin weighs 7.12 grams. It has a diameter of 25.9 millimeters and a thickness of 1.85 millimeters (1971 until 1992) or 2.03 millimeters (1992 and newer).
A two cent US coin is larger in size than a ten cent US coin.
It was 30.0 mm until 1997, when it was reduced to 27.3 mm.
The 5 cent coin is smaller in diameter than the Two Dollar coin. The Australian 5 cent coin is 19.41 mm in diameter. The Australian Two Dollar coin is 20.62 mm in diameter.
The USA 3 Cents coin, issued 1851 to 1889. Two versions of the silver 1869 coin > The 14mm size coin has a star on the other side. The 18mm size coin has a portrait on the other side.
Two inches
It depends on the size of the coin!
About the size of a penny or coin.
If you mean a mint mark on the reverse of the coin, it's a D or S but not a P. Please look at the coin again.
No US one cent coin struck in Philadelphia has ever had a "P" Mintmark so the coin is just a penny.
The coin can't have a P mintmark. The only possible mintmarks are O, S or CC. Please, look at the coin again and post new question.
The P or D denote where the coin was made. P=Philadelphia Pennsylvania, D=Denver Colorado. If by "gold coin" you're referring to the Sacajawea dollar, it's brass, not gold - just golden colored.
7 Sides on a Twenty Pence Coin