Back after Haley's Comet invaded our night skies, some outfit had a bunch of these little brass telescopes in wooden cases made up. After the excitement was over, and I got a bunch of them on a closeout special. I think I bought them by the case for $5.00 a piece. I took a couple of cases to Friendship that year and sold them all at a pretty good profit but still at a reasonable price. The only thing was, they had Haley's Comet engraved on the side with a comet logo. Wrap a piece of light leather around it and so what? Wish I still had some of those left.
Where to get them now I am not sure, but I would try Track or Townsend first off. Not sure if G Gedney Godwin carries that sort of stuff or not, but they would be worth a try as well.