Originally Posted by
JohnDThompson
I concur; looks like a Phil mounting ring (N.B. Phil rings
do fit other cartridges, so there's a small, but non-zero chance that the cartridge itself might not be Phil).
But not closely enough to use the same tool as Phil
One of the tricks bandied about 15 years ago or so was to run a Shimano UN-72 BB with French or Swiss mounting rings to get a relatively affordable BB setup. Then Shimano went to permanently affixed mounting rings on their BBs and spiked that move. I remember a friends's Mondia being set up that way.