Not intending to be argumentative with fellow CNer’s who I’m sure enjoy their Tele Vue gear as much as I do,
Even though at first glance the TV plate from the OP looks very similar to the TV Balance Aid, once you have a closer look at the pictures that he posted, you will see that his plate has one pair of countersunk holes in the middle (for TV clamshell/rings) and another, more widely-spaced pair of holes (presumably with the spacing for the top plate of Vixen Super Polaris mounts), but the countersinking is on the opposite face, as noted by the OP.
The Tele Vue Balance Aid Plate (APB-1008) has two pairs of holes, both with the same spacing (for TV clamshell/rings), with the countersinking on the opposite face of the plate for each pair (see my picture attached below). So, I’m afraid, not the same as the OP’s TV plate!
The only other option that I can think for the possible identity of the OP’s plate, is the Tele Vue Mounting Adapter Plate for the old Meade LXD-500 EQ mounts (ALX-500), but this was less common than the Super Polaris Plate (APL-1005) and I only have an old, poor quality printout from the stock photo for this item (attached below at the bottom), so I would not venture to bet on it.
Edited by Castor, 24 September 2023 - 01:34 AM.