Donegan Optical Company Inc
OptiVISOR Lx w/Acrylic Lens

2X Power, 10" Focal Length
Walthers Part # 240-16, p. 856 Walthers 2012 HO Scale Reference
A scale, $37.15, currently in stock at Walthers

 
Includes dial, adjustable headband, high-impact visor, genuine leather-padded comfort band and optical acrylic lenses mounted in an interchangeable frame.