I was inspired by Obkrieger's thread and thought I'd share my SSI collection. I only started collecting them back in October after I acquired a large grouping of patches from a local antique mall.
No real structure to my collection other than trying to obtain WWII era insignia and trying to find as many variants as I can. I don't do ebay and all of my finds are locally sourced.
I'll continue to update the thread as I obtain more.
In any case, I hope you enjoy!
5th Corps (Greenback)