IIRC (and I often don't) Brunswick was a subsidiary of Columbia, though maybe it was a subsidiary of Decca. Also, IIRC, the late John Norris had something to do with convincing them to release it.
And (I think) the Charlie Christian twofer Lp. I don 't have a turntable but I kept that just because I like the look of it. ( I also like the extended versions of songs that our Chris Albertson created by combining the solos from different takes-- though I managed to digitize them so that I'm really just keeping the album for the cover. )