And, if the recording service had only a single "disc cutter,"
it is very possible that the missing section of A'n'A was cut
on a second disc (and where that is would be a good question!).
A small point, but perhaps a significant one. If there had been only one
cutter, it's likely the disc would have been flipped for the next part.
Therefore, one can reasonably assume that the recordist had access to
two cutters, making it even more likely that it was done professionally
(station, private studio) than that it was done by a well-heeled individual.