My apology that I can't add picture. I was helping my friend as he has his grandpa coins passed down to him. I went through his coins to give him estimate value as he want to sell them. Out of all coins, I saw one quarter coin, it's 1970 proof. It's not "S" mint, but "D" mint. I did use 10X magnify and it's a "D" mint without any sign of engrave. I checked my own sources then checked google, but no luck to find more information regarding to that coin. I can guess two possible: it may be a commemorative coin or planchet error? I wonder if anyone of you know about that coin?
I.cutler: I did test reflection with text and I can see words very clear. Idhair, kydedhed: I do know PL do exist for Morgan, but quarter? It's very strong PL as I can see words in six inches length.
Kirkuleez: It has been while to post a thread, but I always be around reading different threads in this forum. Thank you for letting me know that it can happen to any denominations. I know Morgan do show different value between regular and PL coins. I wonder if you have any reference regarding to Quarter PL's value?
The only proof issued by the Denver mint was the '84 Olympic gold eagle. "Proof like" as Larry stated.......
Reflectivity is NOT the determining factor of a proof coin. How the coin was manufactured is that determination. Coins off of fresh dies often exhibit Proof characteristics but seldom if ever exhibit ALL proof characteristics of which reflective or mirror fields is but one. Sharp, square rims is another. Sharp, almost knife like reeding is another. The easiest method of determing whether or not a coin was made with the proof manufacturing process is to compare it directly, side by side, with an actual proof coin.
Assuming it's not been altered/polished etc. it may just be from a very early die state to the point it's almost proof like. (Or maybe it's just a high grade uncirculated.) But no true proofs were minted in Denver in 1970. Would love to see pics of it.
