Precision scaled eye magnifier

Version: With aplanatic lens system.
Precision engraved anti-glare measurement scale.
Special open tube for optimum illumination and stability.
Optional extras: Lighting unit No. 49 0545.
Spare part: Measurement scale No. 490542
https://www.hoffmann-group.com/medias/sys_master/root/hc3/h3a/8874902978590/490540.pdf
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