Vintage Karsten Mfg. Corp. PING 'My Day' Manganese Bronze Putter

This is a vintage PING 'My Day' putter, a classic blade-style golf club produced by Karsten Manufacturing Corporation. The head is cast from manganese bronze, evidenced by its characteristic deep gold-to-brown aged patina and weathered texture. The design features a distinct long-neck hosel and a cavity-back blade profile designed for heel-to-toe weighting, which was revolutionary for its era. The back of the club head is clearly engraved with 'KARSTEN MFG. CORP.', 'PHOENIX, AZ. 85029', and 'MADE IN U.S.A.', along with 'MY DAY' on the toe and 'PING' on the heel followed by a registered trademark symbol. The condition shows moderate vintage wear consistent with use, including small nicks, surface scratches, and 'bag chatter' along the top line and edges. The original bronze finish has oxidized over time to a dull luster. The head is attached to a stepped chrome steel shaft, appearing to be original. This model dates roughly to the 1970s or 1980s and represents a significant era in Karsten Solheim’s engineering of perimeter-weighted putters, highly regarded for their balance and soft feel.