[maple_leaf_eh]

You are far more meticulous than me!

As to the tire pressure gauges, the bottom two with the loose collar and ring as familiar to me from the Canadian army in the 1970s. Tools don't wear out riding around in a tool bag, checking tire pressure once or twice a week, but only in active training seasons. The rest of their lives are spent quietly staying warm and dry inside a locker or a tool box.