Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: Tri-Plex "Jewel" set in royal blue velour-covered dome shaped case Manufacturer: Tri-Plex Safety Razor Co., Inc., 1918 Cherry St., Philadelphia, PA Type: Safety Razor Country: USA Patent: Comment: 3000 were made, but it was never sold to the public. Source: Editors: