Carburettor main jet for the vintage twin barrel Carburettor ( both barrel are the same size).
Drilled 28 thou use a set of number drill to increase in size if needed.
Casting Lobster Tail lower Bracket
1914 and Model H than early SD
casting rear stay ends casting
2 cast needed per rear stays
Sold as 1 casting 1 top lug and 1` bottom lug
can be used in most model to make the stays from
Casting T piece Late
will fit from 1914 / H ? early SD