[78-L] BG question

[neechevoneeznayou at gmail.com]

I have acquired a 10" vinyl DJ pressing of 2 sides by the BG Trio. Tiger 
Rag (27-0119), C6-VB-0002-1S. Label gives recording date of Nov. 18, 
1936. 3:20

Flip side is Oh, Lady Be Good. (27-0119) C6-VB-0003-1S. Recorded April 
27, 1936. 3:00

So surely these are electrically transferred and not pressings from 
original parts, yes? I'm wondering why records made in the 30s would be 
included in "RECORD PREVUES coming attractions" in what appears to be 
late 40s/early 50s DJ copies. What's new about a record 10 or more years 
after it was recorded?
-- 
Joe Salerno