Autographed 1971 Mail Receipt – Ronald Brenner Oakland A's Minor League Pitcher

All my autographed items come from the collection of the legendary autograph collector and memorabilia dealer Dick Dobbins, who tragically passed away from cancer in 1999. I purchased the remainder of his collection from his son, Pete, in 2003. A letter of provenance is available on any such item upon request w/purchase.
Featured here is a registered mail receipt from 1971, signed by Oakland A’s Minor League Pitching Prospect Ronald Brenner
. (Please see scan and ask any questions you may have)
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