[sheepherder]

I picked this up at a gun show maybe 20 years ago...Seller had no idea what it was...me neither...

Top button has a "B"; side button is unmarked, but is clearly an add-on, as it covers lettering...Trigger is momentary contact...

Possibly military...but not very sophisticated...not enough functions...maybe very old...

I mounted it to this pedestal...It had a plate saying "Too close for missiles...Switching to guns" on it, but it got lost somewhere...