I believe the 533 production number is the LE 50th anniversary car, which this one is not, or does not appear to be. My guess is someone had the dealer add them to the car either new or aftermarket. As far as value, probably less than a comparable 77. I know a recent 50th anniversary with t tops and 4 speed recently listed on ebay from a Toyota dealer (I spoke to them) and they were asking $16,000 on the lot and it sold before ebay listing was complete. I may be way off but I would think $8500 depending on how it looks in person maybe more maybe less. Standard interior, no decals, aftermarket wheels, maybe an oil leak seeing whats under the car, maybe a seam split in driver seat