Silverstat Soldapullt model 2 -AS196 -1- AS198 desoldering tool solder sucker

Description

Silverstat Soldapullt model 2 -AS196 -1- AS198 desoldering tool solder sucker.
One of the AS196 is missing the tip.
Sold as-is. Please look at pictures
All three lock when depressed and release when button is pushed.
I don’t know any more about these.
My Dad who passed away recently at 95 was into electronics.
Condition is "Used". Shipped with USPS First Class.