There must be at least two 13-inch Komet disc formats.  You mentioned
that yours was a single comb (61 teeth).  I have one that plays 13-inch
discs and has two combs with a total of 84 teeth.  The combs are
arranged similar to a Regina double comb but each of the separate comb
teeth is plucked by its own star wheel.  There are 84 "notes" and 84
star wheels tightly packed together.

On a Regina (and most other disc boxes with double combs) each star
wheel plucks two teeth, one on each of the combs.  Discs for this
two-comb 13-inch Komet machine would look similar but would be very
different from a single comb Komet disc.  They would probably have no
interchangeability.  The "needle in the haystack" just got a little
smaller.

Joe Teagarden,  Connecticut