Posted by scott on March 21, 1998 at 20:04:52:
what year was the 550 produced into. Someone told me they have one that is a 1974 model and I thoutht they were produced only until the mid-60's. If so then is there any improvements made to these later models that the earlier ones did not have. and what might the value be on one that is supossedly a very straight and pampered original model.
Thanks scott