Hi Sean,
I spoke with both Alun Nicholas from TDC and Steve Boitoult from Shropshire group yesterday and between them they advised that the club’s spares position for this bracket was one of being out of stock with no ‘Pattern’ available to enable a re-manufacture as matters stand. The bracket is pretty much an 1850 only part because the Sprint has a different gearbox and so a slightly different front exhaust set up to the 1850. Therefore, the bracket is known by suppliers and TDC as a ‘low demand/slow mover’, which doesn’t therefore give itself readily to cost effective regular bulk re-manufacture.
If we can have as many pictures as possible of your bracket that would be a fabulous start.

Even better would be if Alun & myself could maybe even borrow your bracket and thereby allow us take lots of precise measurements to enable a precise re-manufacture ‘Pattern’ of the part to be made for both my own personal need now and that of the Club’s future reference for future member restorations of the 1850.
If you could help, I would be forever in your debt. I am trying to restore my May 1972 1850 with as close to original Dolomite stuff as possible to that stated within the July 73 parts catalogue. I’m getting nearer and nearer to accomplishing my aim and don’t want to fall down at this late stage purely down to an exhaust bracket. To some, I’m ‘Bonkers’ for sure. However, I’ve really enjoyed the last few months sourcing all sorts of parts. Matter of personal pride now.
Hope you can help.
Cheers
David