The most desired item by far, are the Ray-Ban sunglasses by Bausch and Lomb (B&L), model Chromax, driving series.
Mostly a standard model from the B&L line, one glass was engraved with gold letters T-5R.
T-5R gold lettering, next to Chromax in gold, was also printed on a decall on the case.
Some say, mostly connoisseurs, that the frame is gold-plated, allegedly. It might therefore be rather expensive by itself already.
The small engravement into the glass makes it unique and therefore almost priceless.
(item sold on auction the website Tradera in Sweden in the summer of 2016)
The glasses were also listed in a BTCC merchandise brochure.
Each of the T-5R owners in Sweden received the glasses as a present from Volvo of Sweden’s CEO Fred Andersson, in february 1994. According to the accompanying letter, Volvo was eager to know what the new owners thought about the car.