[maple_leaf_eh]

Straight and angle head 2-D cell flashlights are what I remember. Slider ON OFF and a third setting for a Morse Code button. They came in green, black and yellow. The bulb fitted into a clever wire holder and was almost indestructible that way. The butt cap unscrewed for a selection of red, white, blue and clear filters. Used judiciously, the batteries lasted many days.

The Op East Wind site states, only one particular US manufacturer is acceptable. Hmm? No. I recall reading Mine Safety Associates on some of mine. Same company that makes respirator filters.