Helmar T332 Baseball Stamps Advice

[nickirun65]

Hello, Everyone!!
I'm new to the forum because I am NOT an expert but do have some post-war cards (football and baseball) that I inherited along with some numbered modern football cards too (Panini, I believe)....a few with autographs.

The reason I am here is to ask the members' advice on some 1911 T332 Helmar baseball stamps that I uncovered in the attic going through some old school papers of the people that built the house turn of century. There are six of them on a piece of school paper that the child had scribbled on (not on the stamps thank goodness). They do seem to be a little dusty from sitting in a box though. I will probably sell them in the fairly near future and wanted to get your thoughts on whether I should attempt to soak them to get them off of the paper or leave them on as a "lot" and sell as-is? I can tell you that the borders look decent, but what do I know. I'm attaching an image of the paper with stamps for your thoughts. Our moderator said y'all would have some great input!

Thanks in advance!
New Member Nicki