The telescope has a refractor and an Schmidt-Cassegrain telescope. The observatory houses two telescopes&colon; a 6.25-inch Hastings-Byrne refractor and a 14-inch SCT. The Blackett Observatory houses a 10-inch-aperture Cooke refractor on a motorised equatorial mount. HCO's first telescope, the 15-inch Great Refractor, was installed in 1847. An example of an older refractor is the Shuckburgh telescope (dating to the late 1700s). The company is noted for its glass reflector/refractor. The Meudon refractor was built at Meudon Observatory. It was discovered by direct visual observation with the doublet-lens refractor. A major contemporary for the Yerkes was the well regarded 36-inch Lick refractor in California. A phoropter or refractor is an ophthalmic testing device. In addition to the large refractor, Yerkes also conducted a great amount of Solar observations. The Gold Refractor set was shipped before the Auto Set. Collectors enjoyed the offerings of the set along with the refractor parallels. Mega Man Volnutt exits a ruin after finding the refractor inside. Lacaille observed over 10,000 stars using just a half-inch refractor.