Specification :

Microscope National Model 189

Compact design and precision optics combine in this indispensable shop tool. Small size and rugged carrying case make it easy to take anywhere on the job. Four models provide a choice of four different magnifications. Each has the following features:
OPTICAL SYSTEM
• WF10x eyepiece with direct reading reticle ( no calibration required) . Eyepiece turns to permit sharp focus of reticle scale.
• Each model includes both inches and metric scales.
• See chart below for magnification and other optical specifications.
ILLUMINATION
• Penlight illuminator in swivel mount. Requires 2 AA batteries, included.
FOCUSING
• Rack & pinion focusing with dual focusing knobs.
FRAME
• Cast aluminum, gray enamel finish.
• Height 230mm ( 9 in.) . Net wt. .64 kgs ( 1.4 lbs) .
PACKAGING
• Rugged, molded black plastic case with latch and carrying handles. Interior is fitted to securely accommodate microscope in place.
• Includes instruction brochure, dustcover and 2 AA batteries.
• Individual: Ship wt. 2.3 kgs ( 5 lbs) ,
• Master carton pack 10 each: Ship wt. 16.8 kgs ( 37 lbs) ,