One French Solex 40mm updraught caburetor, type 40 VAFD N
The mounting holes for the intake are 50mm apart. The mounting holes at the top (where the screws are) are 45mm apart.
Switchpanel with Yale key for 1922-1925 Buick 4 cylinder car made by S & S Kellogg Co. /Chicago/ USA. In good condition and commplete but one manette slightly chipped.