Hastings Triplet Magnifier, Power 20X, Diopter 80D, Focal Distance 0.5 in, 1.3 cm, Lens Diameter 8.3 mm, Case Nickel Plated, Swing Away, Features Incorporates 3 Separate Glass Lenses Bonded Together to Form a Compound Lens, Very Distinct Magnified...
Hastings Triplet Magnifier, Power 20X, Diopter 80D, Focal Distance 0.5 in, 1.3 cm, Lens Diameter 8.3 mm, Case Nickel Plated, Swing Away, Features Incorporates 3 Separate Glass Lenses Bonded Together to Form a Compound Lens, Very Distinct Magnified...