Can Anyone Idetify These Bucket Seats?

Do some dismantling to look for clues. For example, if you remove the back there is probably a manufacturer stamp molded into the part. There could also be a part number and year.

I had a similar issue when I bought my Demon. It had buckets out of 73 Camaro. I removed the covers that went over the hinges for the back of the seat. Found the "GM", the year "73" and a part number. From that I was able to look at Year One online catolog and determine what model car. Sold them on EBay for $100 and Exorcised the GM junk from my Demon!