Up for auction is a beautiful B & L  brass microscope; Pat. 1915.  This 103 year old microscope works well.  The microscope comes with a mechanical stage and the mirror is surprisingly clear on both sides given its age - the photos show both sides of the mirror.  The also comes with what appear to be metallurgy parts.  The scope comes an eye piece marked 6.4, and three objective lenses marked 1.9mm, 4mm, and 32mm.  There are three lens cases as well as a very nice case (no key).  This wonderful brass microscope will make a great addition to any collection and it still works!