"Serge Auckland" wrote in message
...
"Don Pearce" wrote in message
Offhand, I know of only a few arms that don't have standard holes or
slots. One is the Mission 774, another is the EMT929 . The Audio Technica
headshell as supplied with the AT33 cartridge and AT1010 arm had fixed
tapped holes, but as the arm had a standard SME mount, any headshell could
be used.

I've just looked at my Mission 774 arm (on an old Dunlop Systemdek) and it
has tapped holes in it so the screws go up from underneath.
I don't play LPs very much, I'm afraid.
Regards Mike.