The difficulty is drilling the rear brake bridge as the seat tube is in the way, also a lot of rear brake bridges on older frames were hollow so would be difficult to convert
You could try repainting the saddle with leather paint available for cars. Unsure though to how it would stand up to for cycling and sweat
I wanted a yellow leather saddle for my Graham Weigh but all the yellow ones I saw were the same sort of condition as your saddle so I eventually found a...
Air wrench and 120psi set at a low/middle torque and it will come out in about 10 seconds. You need to be careful using long bars as they can easily twist the frame if it isn't supported properly
Brand new 7 speed Uniglide
7 speed
14,15,16,17,18,19,21
I bought this last year and it cost me £40 plus postage so I would like my money back
Library image but exactly the same except for the different ratios
It's so difficult to determine modern frame sizes without trying them first. My old steel Peugeot is a 56cm frame and is a perfect fit for me at 5'7".
I have several modern frames ranging from XS to S to 50cm to M and they all fit. The XS frame did require a slightly longer stem and 20 degrees...