by HardCoreHanSolo » Thu Jun 17, 2010 7:59 pm
Found this on another site
We don't have much data on the serial numbers, but you can still determine the production year by looking inside the piano. There are two 4-digit date codes, one on the pickup rail and one on the tonebar rail. The code on the pickup rail is located on the right-hand side, beneath the part number. The first two digits indicate the week of the year, and the last two indicate the year (e.g. 0978 = 09th week of 1978, sometime in early March). This is the week the pickup rail was completed, which was normally 1 to 4 months prior to the day the piano was finished. This code is the best indicator of the piano's age.
* "Sparkle Top" Fender Rhodes (1965-1969)
* Fender Rhodes Mark I (1969-1975)
* Rhodes Mark I (1975-1979)
* Rhodes Mark II with wood keys (1979-1980)
* Rhodes Mark III EK-10 & Rhodes 54 (1980)
* Rhodes Mark II with plastic keys (1981-1983)
* Rhodes Mark V (1984)
it's 1975-1979. It's the oldest one i've ever seen, not sure on price.
Delay is preferable to error.
Thomas Jefferson