I bought my 1981 Celica XX about a month ago. The rims I have on it came with only one of the centre-pieces with the words "Rays Eng." on them.
Only just got the chance to take them off the car and get some different tyres on them. On the back of them is pressed the "Made in Japan", and their size 15" x 6.5". Was a shame I couldn't get an exact weight for them, but I was a bit pumped for time. They are really light, much lighter than my old 14"x5.5" Celica alloys, even with the much bigger tyre on them.
They look cool too Sorry, just had to post 'cos I'm happy Not bad for a $1700 car