Keep in mind , they may not be Beaver jar lids. There is an American jar that has an extremely similar lid that get's mistaken far too often by novices.
I guess it's a matter of these lids' edge profiles, which aren't very discernible in the OP pics. Beaver inserts have square or angle slightly inward. It's my understand that the Helme's jar inserts have rounded edge profiles. Is this case for Helme's jars?