Well when my buddy the Vietnam vet taught me how to play when I was 15 years old ( I'm 60 now). He taught me on that exact bass on the right. It passed threw several other of my friends hands and I even owned it once before, but the story was that they just made a few good prototypes then started making them in Japan and decided to just make cheapos. There was no internet so we never knew any difference until my guitar player ended up with it about 10 years ago and discovered it's real value and I ended up buying it for 2 grand off of him just about 3 months ago. Then I saw an ad for an identical one in new jersey for $1200. I offered him $1000 and drove up late week and got it and after learning about how they dated them with the serial numbers, it turn out that my first one was #13 and the one I drove and bought was #14 and made one day later. To my knowledge I haven't seen one that is higher than 53 on the second two numbers. The last 2 numbers are the year (74) and the2-4 numbers before the last 2 are the day and month. First number indicated it was a 5050 and 2nd and 3rd were the number made. So what are the odds of having 2 in a series? Number 13 and 14 of 53. Thanks for inquiring. Didn't mean to bore you to death it's just I am still in awe.