Vintage 1940s ZIPPO 3- Barrel Hinge Lighter Zippo | eBay
Design Changes
1933-37 Zippo, Square corner models
Zippo Repairs - Windproof Lighter | Zippo USA
1938 - 1941 Slash Corner Zippo Lighter
DIY Rebuild of a Zippo Lighter : 10 Steps (with Pictures) - Instructables
Gold Colored Zippo Lighter Loose Hinge | eBay
3pcs/bag lighter accessory suitable for zorro zippo and other kerosene lighters inner parts cotton/needle/hinge 3PCS PETROL|Cigarette Accessories| - AliExpress
Redesign of a Zippo hinge by Kacper Holenderski at Coroflot.com