WRA CO headstamp unfired brass question

[quack1]

Don't know where this should go, so moderators feel free to move it if this isn't the right place.
I acquired a little over 200 new, factory primed 32-20 brass with the WRA CO headstamp. I sectioned one and they are the semi balloon head type. They are pre 1928 manufacture as they dropped the CO from the headstamp in 1928. I was planning to punch out the primer, anneal the necks and form them to 25-20 and just use them for mild cast loads.
Before I do, would cartridge collectors have any interest in these cases? To me brass is just brass, but before I change something that has sat unused since the 20's, figured I'd ask.

[Tatume]

You could list them on eBay and see what happens. If they don't sell it won't cost you anything.

[Eutectic]

They could be wanted by a "purest" black powder shooter..... Those older cases will take the full 20 grains charge of black.

Eutectic

[labradigger1]

You could list them on eBay and see what happens. If they don't sell it won't cost you anything.

You cannot sell brass casings on eBay or craigslist as per their rules. You can on arms list
Lab

[cajun shooter]

You could also sell them on the SASS forum if you are a member. As was stated, the BP shooters would like to have these cases.