According to the Wilson factory data code of B-T-C (July 1969), this cap dates to the last of Callison's 10 seasons with the Phillies. Our consignor, noted cap collector Ed Dolan, reports that he received it directly from Callison, whose "8-9" signature (PSA/DNA sticker/no cert) and uniform-number notation (in another hand) appear on the brim. Moderate wear with nice sweat stains on the band.
Huggins and Scott is allowing the winning bidder 45 days from the date when payment is received to have the item independently authenticated. Payment must, however, be made within two weeks from the end of the auction. Huggins and Scott is not responsible for any authentication fees or shipping charges incurred by the winning bidder but H&S will refund the hammer price and buyer's premium if the item does not pass authentication with a reputable third party company.