Pony Tonneau

Needed to complete restoration of a 1910 Chalmers-Detroit 40 Pony Tonneau. Looking for one restorable running board for 1910 Chalmers-Detroit. Both the 30 and 40 used the mesh grating running board in 1910 only (see attached photo). 9" wide X either 56" long (touring) or 46" long (roadster & pony tonneau) These running boards are brass bound on three sides. I can use either length. Thanks for your help.