that was the e-brake cover used on cars that did not come with consoles. there was a trim piece around the shifer and that piece at the base of the e-brake. most commonly seen on early foxes, namely stripper LX's and SSP's. for best results id look for 79-86
no, not any 79-86 car as the majority of them had full consoles. you will have to specify that you need the piece for a console delete car. i doubt the dealer would have it anyway, best bet is to give CJ Pony Parts (www.emustang.com) MPS Salvage (www.mpssalvage.com) or Prestige Mustang (www.prestigemustang.com) a call as they all deal in mustang salvage, its better chances that they might have a car like that in their yard, or perhaps have removed the part you need from a car and have it in stock