Here is there web site !
http://www.perrypumps.com/prod01.htm
I used one 4 years ago on a OS91 FX.. I drilled the backplate and put the nipple in the back and it worked great on my pattern plane... Should wotk on the 1.20 since lot of the guys are using them on the OS 160..
Scott Anderson
Team tanicpacks.com
Team Castle Creation