Here are some drawings of telescopes that I have done. I will add more drawings in the future. And if you have some drawings or paintings of telescopes that you have made I would be glad to add them. Send me an email.
This is a pencil drawing of a six inch reflector telescope on an equatorial mount. You can see a larger image here
This is a pencil drawing of a refractor telescope on an alt-azimuth mount. You can see a larger version of this drawing here