Pocket Telescope and Case, English?, 18th Century

Pocket draw-out telescope with shagreen fishskin tube in shagreen fishskin case.

.1 - Pocket telescope with green shagreen outer tube and red extending inner tube. Metal and bone components. Ivory tag '544' attached with wire around outside of neck.

.2 - Case for pocket telescope. Black shagreen case with hinged lid and button fastening. Partially lined with card and velvet. Metal ring wedged to inside of base, possibly from telescope. Adhesive label to lid with number '544' handwritten on in pencil.