Looking through the records that are on here, I can't make heads or tails of it. There are a couple of other gold-blue labels here, though both are E-prefixes (here and here).
I've been trying to figure out why this Telefunken record exists in the standard blue-gold and in the rarer gold-blue label, but so far in vain. Both variants seem to be pre-WW2.
I've seen other gold-blue and even gold-red labels, e.g.,
gold-blue Telefunken A 2186 Peter Kreuder, Amargura (image)
gold-red Telefunken A 2369 Duke Ellington, Caravan (image)
The record above also exists in a mid-war pressing on a white-blue label (image).
When the matrix numbers are that far apart (19386 vs. 19328), you can usually assume that the much newer recording is the A side, whereas the older recording was added as a flip side.