I`m sure the Factory had fixtures like this ( but not in timber ) , and was most useful as a " third hand ".
Dimensions are self explanatory and the timber can be any size .
Old bolts were used for locating dowels when the frame need moving from say wheel to RFM.
Dimensions are self explanatory and the timber can be any size .
Old bolts were used for locating dowels when the frame need moving from say wheel to RFM.