Used! -genuine  amal pre monobloc 

float chamber ass 1 B ?

straight arm 

with BARE cap    for restoration

to take a banjo and nut fitting 

  ORIGINAL  CONDITION

 CORNERS ON THE HEXAGONS  need a clean up

needs stripping and rebuilding !  as stated FOR RESTORATION !!!!!!!!!!!!!!!!!  SOLD AS IS 

 but could be used -  panther ariel  douglas sunbeam vincent   bsa etc etc , fit amal  ,  276 models etc etc , this is 70 years + old