Wig Spectacles and Case, by Hudson and Son, Greenwich, Late 18th Century?

Subject: Optical instruments
Item type: Object
Makers: Hudson & Son
Primary inscriptions: "HUDSON & SON GREENWICH" stamped on left arm, and "20".
Physical material: Glass; Tortoiseshell
Object type: Spectacles
Dimensions: Height: 146mm Width: 35mm Depth: 13mm Weight: 31g
Inventory No: 60960

Description

Rims and hinged side arms of tortoise shell. Half-cylindrical case and sliding lid of horn.