This is an OM-2 specific hot shoe from my own OM collection, previously used with a 1976 OM-2 which permitted TTL off the film metering with the new at the time T series flashes such as the T20 and T32. Note that it does NOT fit other models such as the OM-1 & OM-2n.
It is in excellent condition especially considering its half century age-it fits securely, the rubber pads are intact and has no cracking from the over tightening that these can be subjected to.