I dunno, its not mine, but has gone back to its original owner from the 80's, his dad was told only two came into the uk when he got it, possibly from Renhams in Folkestone?
But being as we aint teenagers anymore my opinion was that the dropouts look a little small for 14+ stone 40 year olds.
And from bitd i only ever saw navajo mini/midi and juniors in 20", so wondered if this was intended to be a junior cruiser, and hence he doesn't wanna race and wreck something that could be very rare?