AN IVORY SCREW-BARREL MICRSCOPE
ENGLISH, EARLY 18TH CENTURY
the barrel with threaded handle and brass-mounted slider holder with steel spring, two ivory mounted objectives, holder for six slides, in fitted fishskin case.
7in. (18cm.) long in case
AN IVORY SCREW-BARREL MICRSCOPE
ENGLISH, EARLY 18TH CENTURY
the barrel with threaded handle and brass-mounted slider holder with steel spring, two ivory mounted objectives, holder for six slides, in fitted fishskin case.
7in. (18cm.) long in case
.jpg?maxwidth=3840)