I was a tad surprised to find it is still possible to buy a real museum piece such as these....
http://www.fleaglass.com/index.php?a=5&b=319
http://www.fleaglass.com/index.php?a=5&b=318
... Expensive shiny junk perhaps, but it does make you think how tedious it was to observe anything much with such a scope, poor optics, awful eyepieces, no circles, painfully small field of view. Only a true masochist...