1970’s PETER FOUR Navy Seal USA Frogman UDT/SEAL Vintage Mens Large T-Shirt Mar 23, 2025 1970s If you know, you know what PETER FOUR is about. This t-shirt is from around the 1970’s-1980’s. Pit to Pit: 23 inches, laying flat. Top to Bottom: 20.5 inches, laying flat. This t-shirt is ...