A Question about "Union Star Cartridge Company"

Looking to access the vast member knowledge here. I stumbled onto a full box of cartridges that I have never seen before. I can not find any info on this company. Is this a fantasy piece or was there a legitimate “Union Star Cartridge Co”?



Sorry, I appear to have posted this in the wrong sub forum. I thought I was posting in the General Discussion area. Please forgive my neophyte mistakes here.