Is paved with bologne sandwichs !!! In case you missed it --- and you mustnt http://www.flashbackfab.com/pages/excel03.html Its a 1919 Excelsior boardtracker OHC engne and all , fabbed from a photo of the right hand side . Not this photo ! http://www.khulsey.com/motorcycles/zoom_excelsior.html Chuck Balyeat http://royalcrossfarm.com/essentials.htm