Preliminary identification
Photo reference
3 uploaded photos
Overview
An incredibly precise, mid-century optical alignment and inspection instrument manufactured in Japan for Bushnell. This specialized kit features a heavy, finely machined aluminum base with micrometer-style adjustments, a reflecting mirror, and a calibration bar, all housed in its original purple-velvet-lined presentation case.
Story
During the post-WWII era, Japanese optical workshops transitioned from military production to crafting the world's finest consumer and industrial lenses. This precision alignment tool represents the peak of that mid-century manufacturing boom.
Maker / Origin
Founded in 1948 by David P. Bushnell, the company revolutionized the optical market by importing high-quality, affordable binoculars and precision instruments from Japan. Bushnell worked directly with Japanese manufacturers to implement rigorous quality control standards, proudly branding their finest imports as 'Triple Tested'.
Condition & Value
The set appears to be in excellent, highly preserved condition with minimal wear to the machined aluminum surfaces. The original case shows minor exterior scuffing but retains its vibrant purple velvet interior and structural integrity. The steel calibration bar shows minor surface oxidation which can be easily cleaned.
Full Research
Sold comps, value drivers, and venue guidance pulled from recent auction results.
Build on this identification
Layer in sold comps, value drivers, and venue guidance.
Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.
Best Venue
Specialty auction or a focused dealer with buyers already in this lane.
Signed example with light edge wear and original frame.
Comparable format with stronger provenance and cleaner surface.
Smaller related piece with visible craquelure and trimmed margins.
Period match with softer condition and weaker subject matter.
Close market lane comp with similar material and presentation.