The Schreader tire pressure gauges (from the early 1900s) that look like a shotgun shell........... what is the secret to disassembling/restoring these and getting them to work accurately?
Anyone taken these apart? Made them work again?
Never opened one up. But here's a group of them I have collected over the years.
Cool Jay. I guess the non-functioning examples far outnumber the functioning ones. Someone must have taken these apart? Can't be that complex.