Actually, you never saw "double-anchor wings" until 1968…NFOs (I think also called Naval Aviation Observers (NAO) until 1968) wore the old-style "flying toilet seat" wings before that (think Naval Aircrew Wings without the letters "AC").R1, you're right, it was called just Preflight back then. I had never heard of an NFO, or seen 'Double Anchor' wings, until the '62-'63 time frame when the F-4 was being introduced into the fleet.
BzB