In the 2009 Scott catalog, this stamp is #128 (30Jun1944). The catalog value is 25c.
However, keep in mind that the catalog value is for a well-centered stamp with no faults.
It's nice that you have so many stamps and I hope you are enjoying them. However, the stamps you have shown are all either stained/toned or damaged in some other way; concerning actual sales value, these stamps are usually unsellable or will only sell for a few cents each at most.
I would encourage you to enjoy your stamps for the beauty, relaxation, and knowledge.

k