Underwood 3 and 4 Bank* Standard Portable Ribbon Spool Thumb Screws F*S no google The gong rings -VERY- loudly

The gong rings -VERY- loudly and just once when voltage is applied

Rig this up with a 6v power supply

Art-Deco Silex Glass & Chrome Stove Top Coffee percolator

A manual is included which explains how to use the calculator

This was somehow separated when I sold my windsurfing gear 20 years ago

Underwood 3 and 4 Bank* Standard Portable Ribbon Spool Thumb Screws F*S no google The gong rings -VERY- loudlyThis sale is for two (2) brand new replacement thumbscrews to secure the ribbon spools on your Underwood 3 and 4 bank typewriters, they are necessary to secure the ribbons on their spindles otherwise when you carry the typewriters the ribbons fall out in the case. These thumbscrews will fit both the Underwood Standard Portable 3 and 4 Bank typewriters, they have a mat black finish and nicely complement the black ribbon spools and your Underwood's