Hi Hans,
I have foundthe caliper, but the mounting holes are 102mm +/- centre to centre. But 95mm if you measure from the inside of each bolt. I am not sure which model this caliper came from as it was loose in a box with lots of other bits from a Kangaroo and an excalbur/new york. It looks identical to yours.
My personal email is :
andyroach@yahoo.com. Email me there and I will send you some pictures.
Andy