High-quality NRC Newport Model 420 Linear Positioner with a 1" Newport Micrometer. It is manufactured in the United States by the renowned brand, Melles Griot. The item has lived its whole life in a metrology laboratory.
It has 1" of adjustment. The stage is spring-loaded against the reference anvil as seen in photos.
Positioner will priority ship in medium flat rate box at $14.38 (buyers cost)