SEPTEMBER 1966—THE POST OFFICE REMINDS YOU…”ZIP CODES SPEED YOUR PARCELS.” “AND ZIP CODES KEEP PARCEL POSTS DOWN, BUT ONLY IF YOU USE THEM.”
FLASHBACK: THE POST OFFICE ENCOURAGES YOU TO USE ZIP CODE…(SEPTEMBER 1966)
SEPTEMBER 1966—THE POST OFFICE REMINDS YOU…”ZIP CODES SPEED YOUR PARCELS.” “AND ZIP CODES KEEP PARCEL POSTS DOWN, BUT ONLY IF YOU USE THEM.”