This instrument is a vintage compound monocular microscope manufactured under the brand name Prinz Optics.
Prinz was a house brand for the UK-based retailer Dixons, which sold various Japanese-made optical goods—including cameras, binoculars, and microscopes—from the 1960s through the 1980s.
Key Features of this Model:
Triple Revolving Nosepiece: Equipped with three objective lenses of varying magnification powers.
Mechanical Stage: Features a black stage with a slide holder and adjustment knobs for precise positioning of specimens.
Illumination: This Prinz student model has a mirrors, this specific unit is an electric model with a built-in substage illuminator connected via a power cord.
Focusing Mechanism: It uses coarse and fine rack-and-pinion adjustment knobs