Here is a pic of my S-trim 66 Turbonetics. Yours looks like a P-trim in a .63 housing to me. When I had my p-trim bb70 the wheel did not stick out past the housing, but I had a .85 exhaust.
An old p trim has 11 blades and does not stick out. The new 65 (f1) p trim has 10 blades, I do not know if it sticks out, I don't think it does.
WSLN 6, yours is a F1-68 Turbonetics calls it an S-trim, Precision calls it HPQ