FENNER M-TRIM-2 3200-1602 Motor Speed Controller $200

It is extremely difficult to read the ID Label on this item as the ink is very faded. As far as I can tell this is a :

FENNER M-Trim-2 Speed Controller
Product No. 3200-1602
Hardware No. 7300-1205
Software No. 1000-7598
Serial No. 337581.

It appears to have been used.  It is untested but returnable.