These are the two extreme sizes of side tabs in my collection. The tall one is embossed: J H WESTON CIN O it's 2 5/16" tall. The other one is a "Micro-Spratt", term coined by Jim Colburn, check out his other Micro's posted, think about six variants exist. The light green one above is 1 5/16" tall embossed SPRATT PATENT {with a backwards N} and tab is embossed 1-50

These two were just reunited the other day, thanks to Dwayne Anthony [id=256766071]