Are there any D mint half proofs?

[TxTim]

I found 2 - 93 D's that are exceptional - mirror backrounds but no frosting. Could they be proofs or do they have to be San Frans?
Also found a '72 with a good bulge ridge around the head - is that an error?

 

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[Dimeman]

Proofs are "S" mintmarks. The better detailed ones you have might be from a mint set. ( A complete set of all denomination coins from each mint)They are usually some of the first coins struck from new coin dies.

Post some pics.

 

[goldinmypan]

If you are talking halves then all proof are from the "S" mint after 1968. Before that they were made in Philly ( no mint mark ).