I have one of these, gibson tech. says there records are imcomplete for the gibson customshop bass's. proably mine is 71-73- have to email photo to them for imfo. anybody know the lowdown on these bass'?. when were they being made. gibson says, appx. 250 were made?incredible deep, full sounding with slim, fast neck. mine the paint has not lasted well, checking,etc.any one know there value as collectors?