These are two Rollfast "Mustang" Vintage Collapsible Bicycles. As far as I can tell I am unable to locate anything even remotely like this from Rollfast. I was told they were used on boats to provide transportation when the boat was in slip. The pictures speak for themselves and must sell as a pair. Contact me with serious inquires only. I don't want to speculate on the price they will command after a restoration but a collector or restorer has a lucrative project in these twin, vintage, collapsible beauties.