That is feasible Jon. If you look at the B&W group picture I posted earlier, one of the Matchless G3L's has TAF/83 on the N/S tank, which is not far removed from what I did on my CO tank. Ron

email (option): ronpier@talk21.com

There is nothing on the primary chaincase side of the fuel tank I'm afraid. There are photos of the tank posted on the WD16H & Big 4 website if you are interested.

I wonder if only having the roundel on the one side indicates the Keith's tank was originally on a combination?

Rob

email (option): robmiller11(a)yahoo.co.uk

Good point Rob. The swallow's often had a roundel on the nose.
It's how I did my B4. One on the tank O/S and one on the sidecar front. Ron

email (option): ronpier@talk21.com

So it does! Missed that. Thats enough evidence for me. Roundal on one side and Group marking of B/21 on the other side of the tank. RAF & number on the front numberplate as already mentioned.

What size of roundal looks best? Also what size and font would you suggest for the lettering? Hopefully my favorite stencil supplier is open for busines. Lost touch with the old signwriter guy I used to use. Rgs - Jon

The roundel stencils are a right fiddle on the double curvature of a tank. I went with 1" digits on the Big 4 and 1 1/4" on the RE. Both bikes have a 3" roundel but 4" might be nice if you have room.

I buy my stencils from https://www.axholmesigns.co.uk/ Ron

email (option): ronpier@talk21.com