I couldn't find these markers in Tim Rohr's thread on gallon markers, so I'm hoping somebody has an idea what pump they might be from. I got the cylinder with only the top, base and markers in Eastern Washington last year with no history.
Guessing they could be Canadian as it took a metric wrench to get the top inspection plate off. The markers measure 2" wide by 1 5/8" tall.

[Linked Image][Linked Image]

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Last edited by huskybob; Thu Apr 15 2021 10:24 PM.