I was walking on Hamilton Avenue the other day & saw this mysterious sign attached to an Expressway pillar. I guess 2022 must be the expiration not the issue date. The sign is probably related to contractor parking. But in my head the functional is never far from the romantic. I imagine an honorific, almost-impossible to gain Walker's Permit, allowing special passage throughout the city, with small paper permit signs pasted randomly along the streets and avenues. The permit would serve no purpose other than the Walker's pleasure - out of the blue - at coming across a sign from time to time.