1986 S Proof Kennedy Mint Mark Question

I was wondering if any of the Kennedy Half guys have run across this mint mark style on the 86-S Proof??

Thank You
Stewart

 

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Since the mintmark was put on the models from which the master hub was created beginning in 1985, there can be only one style S mintmark in 1986. This one might has been "thinned out" from die polishing though.

 

Conder101

Thanks, I did not remember when they started that,
I appreciate the information

Stewart