NOS ATE brake master cylinder for sale to suit RHD/LHD buses from August '70 to '79 (without servo). VW part number: 211 611 021 AE. ATE is a top quality German brand and was/is an Original Equipment Manufacturer for VW. The usual suspects sell these for £90 plus. Price: £60 cash, collect Bristol, or £65 via PayPal (as a gift) to include postage within the UK.