Robuta

https://www.rmg.co.uk/collections/objects/rmgc-object-1163413

Micrometer eyepiece holder? | Royal Museums Greenwich

royal museums greenwich micrometer eyepiece holder

https://www.rmg.co.uk/collections/objects/rmgc-object-1098308

Micrometer eyepiece filter? | Royal Museums Greenwich

royal museums greenwich micrometer eyepiece filter

https://www.rmg.co.uk/collections/objects/rmgc-object-1163409

Micrometer eyepiece | Royal Museums Greenwich

royal museums greenwich micrometer eyepiece