Mk1 telescopes were never waterproofed in any official capacity simply because yopu'd never keep the moisture/water/rain out of the Mk1 type eye lens arrangement Some Mk2's with cell type ocular lens assemblies SEEM to have been done but where the authority came from has eluded me. The conversion to W spec consisted of....... In short, the Mk2 drums were modified and waterproofed in the same way as the later Mk3 drums.

No8 case strap....... Just look up MOORE LEATHER on this site. I think he goes under the name of SADDLER. They are very good. Ask him to make you a decent set of eye caps while he's about it!