I found this recently and appears in good condition. Put in 25:1 but not a peep.
Does anyone know about these and quirks or weaknesses to look for?

The cap has this elaborate valve that has broken off the cap.

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IMG_20230524_170630_copy_992x560.jpg (134.86 KB, 95 downloads)
IMG_20230524_170649_copy_992x560.jpg (126.45 KB, 96 downloads)
Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!