A friend who restores old motorcycles also looked at it. "He thinks it might be an Ivory Calthorpe, which is really rare," Ms Amor says. "He thinks it’s from 1929 to 1931 but we can’t be absolutely sure because some of the defining features are no longer there." Remnants of green paint on the bike have prompted speculation that it might be an Indian Chief, used by the army.
"It would be nice to know exactly what it is," says Ms Amor. The bike’s number plate is still faintly readable but has different numbers on each side. Ms Amor can’t trace it because national records do not go back far enough.
Motat’s road transport volunteers say the bike is British and was likely made in the mid-1920s, but definitely before 1930. It also has a gate change which means the gears were changed by hand rather than by foot. But the volunteers could not say what make it was. "After much discussion it was decided it is either a BSA, a Royal Enfield or an Ariel," says Motat marketing and events coordinator Bridgette Johanson. Some of the volunteers have taken away a picture of the bike to research further.
(I don't think it's any of those mentioned; any guesses?)
Thanks to Jorge for sending this article!
Howard from Australia thinks he has the very model; below is a photo of the BSA he is convinced is the same...