Underwood 3 and 4 Bank* Standard Portable Original Spool Thumb Screw Black Oxide F*S Home_Decor The full width hinge is

The full width hinge is protected from damage with a shield that also prevented the top opening past 90 deg

90 Swingout Condenser

During the era of wooden ships

A revealing portrait of a scientific genius at work

Progressive Scan

Underwood 3 and 4 Bank* Standard Portable Original Spool Thumb Screw Black Oxide F*S Home_Decor The full width hinge isThis sale is for one (1) Underwood factory original Black Oxide thumbscrew used to secure the ribbon spools on your Underwood 3 and 4 bank typewriters, it is necessary to secure the ribbons on their spindles otherwise when you carry the typewriters the ribbons fall out in the case. This Black Oxide thumbscrew will fit both the Underwood Standard Portable 3 and 4 Bank typewriters and has a Black Oxide finish this is one of the original Thunb screws