For the uninitiated or if you're new to hub gears: Sturmey-Archer began making a model of the AW without the "neutral" between gears 2 & 3 in 1984. They haven't made any AWs with the neutral since 2000. Back when they built both models they designated the no neutral as NIG ("No Intermediate Gear or No In-between Gear") but they've pretty much dropped that designation since.