More westamp info on anilam control

On the circuit board is the number assy 30059- with a hand written
number that I can't make out. It might be a 15 or 13. On the other
side of the amp ( the metal chassis side) is a sticker with
Module 30060-17
Ser no 20404-s
Both of these numbers were hand written.

If you do have any info on this amp let me know and I can post a
jpeg of the amp with the pins numbered if that would make it easier.
Thanks
Derek