Fostex R8 meter front panel hooks 'cactus ears' style:left This is just the shell

This is just the shell from a Tascam 144 portastudio

Tape guide from a B16 though may have been common in other 1/2 inch machines by Fostex at this time

These are also the same in the X-300 and many others it seems

this is just the block

there are still hundreds of these mixers in service as they had a very expensive microphone transformer inside them

Fostex R8 meter front panel hooks 'cactus ears' style:left This is just the shellThese are used to keep the front meter panel on a Fostex R8 and maybe used on some other machines, they are easy to fall out so get lost and then your panel won't stay on, These are rare now probably could be made by 3d printing but not sure as take a bit of weight I have sold a few of these and without a problem but seems I was lucky there is actually a left and right version looking at the machine from the front, they are in the photo left is the