1351, works, the usual.
Don't need it anymore, so I can get rid of it.
What are they worth now, 20$?
Put it on ebay with 'Prophet-64 / mssiah mouse' in the title.
At last year's WOC, I saw them selling for $20 CAD and up. I was rather disappointed that even loose, unboxed 1351's in questionable shape were still commanding that price. Then I saw a boxed 1352 mouse for $5. The cover depicted the typical 1351/Amiga style mouse we're all familiar with, but it said it was for the Commodore PC-III product family and Colt. In brackets, it suggested it was also suitable for the Amiga 500. The number on the bottom of the mouse was 312065-1. As it turned out, this was actually a bulk 1351 mouse designed for the Commodore 128. I was pretty happy with getting a 1351 for $5 in 2008. ;D