Here is another out of my collection.. This was my grandfather's Zippo from the 1950-1954 era. Pat Pending 2517191 with original ZIPPO font. He worked at GE General Electric his entire life,
Vintage 1950s Zippo Lighter With Box Pat 2517191
Giao lưu zippo 1955 pat 2517191... - Zippo xưa và nay | Facebook
Just rescued this 50's zippo Pat. 2517191 : r/Zippo
1953 ZIPPO with steel case, with two sided Engraving — Antiques from The Retreat
VINTAGE 1958 PAT. #2517191 ZIPPO CIGARETTE LIGHTER - DOBSON CORP. PEST CONTROL | eBay