[ben]

There were two fitting methods in these narrow headshells. One used an inbuilt metal clip to hold a BSR SC11 OR SC12 cart. The other had the cart as a part of the headshell itself, like the SC7, which seems to have been the case here. Removing the cart usually means destroying it.

Internet pics attached of both types.

Look behind the fingerlift and see if there is SC7 or SC8 embossed in yellow/ gold lettering.

If this is the case, you can flatten down the upper part of the headshell, make a screw hole from above, and screw in an sc11 or sc12.