Fuze components non-explosive?
detent, slider, firing pin, rotor, escapement device
Fuze types?
PD, BD, PTTF, VT, ET, MT, PIBD
PD key id?
simple in design, selector switch, plunger. (HE, Frag, Move)
PIBD key id?
crimped cone, stand off
PTTF key id?
multi piece construction, brass rings, vent holes, time rings
MT key id?
time rings, screwdriver slot at top
ET key id?
bullseye on top, digital viewing window
VT key id?
radome, plastic to metal or metal to plastic to metal, may have time rings