Gas Tank Cap Removal Problems...

Stretch

New member
A client dropped off a set of tanks for a 1959 Harley Duoglide. It's a two piece tank and I'm wondering if both caps are supose to be removable. I can get the left cap off but the right one seems stuck. I don't want to put too much pressure on it if it's not meant to be removed. Anyone have any details about these older tanks?

TIA-Stretch
 
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