MICROSCOPE-ANTIQUES.COM © 2013-20.
COMPOUND FOLDING PORTABLE MICROSCOPE
MAKER: JAMES SWIFT & SON
c. 1877-1879
The
Tommy Bar
(T) is a rod that fits into the holes in the capstan bolts(C) such as the ones that hold the folding legs on, so as to adjust the tension on these joints for wear was needed.