The sign went up crooked, the way they always do: a rectangle of card taped at four corners inside the front window of a brick walk-up, FOR RENT lettered in marker thick enough to read from the far curb. Behind the glass a staircase climbed into dim hallway light, and the whole arrangement had the permanence of a notice pinned to a parish door. We logged it at the board the way the street logs it, on foot, from across the road, because the window sign is the oldest medium this sheet covers and it still refuses to retire.

The oldest medium on the street

Before the classified line, before the portal and its filters, there was the sign. Renting began as a window announcement: a surface every passer could read and nobody had to buy. Its circulation was the street itself, the dog walkers, the postman, the neighbour whose cousin had been looking since spring. That made it the most honest distribution the lettings trade ever devised, because the best reader of a vacancy is someone who already likes the block. A notice in a newspaper reached the whole city and meant it nowhere in particular. A sign in a window reached a few hundred people a day and meant everything to a handful of them. In the older walk-up districts of Canadian cities the sign did the bulk of the letting deep into the newspaper era, and in some streets it never entirely stopped. The board's position is simple: every format since has been an attempt to widen what the window already did.

Cardboard, marker, tape

The materials were a budget report in themselves: appliance carton cut square, a broad marker that bled if the card was damp, tape that yellowed in the sun before the ink did. Two pieces of information were mandatory, the words FOR RENT and a size, 1 BR, bachelor, 4½. A third, the telephone number, often arrived in pencil a day later, when the landlord remembered or when the first interested knock suggested it was needed. The hand-lettering worked as a credential. A steady hand and a straight baseline read as a careful house; a hurried scrawl read as a hallway kept the same way. Nothing about this was written down anywhere, and every reader understood it anyway. The sign's typography was the landlord's handshake, offered before either party had spoken a word, and it filtered both directions: readers judged the letting by the lettering, and landlords learned, within a week, what their lettering was worth.

The tabs along the bottom

Then there was the fringe. Tear-off tabs, each strip carrying the number, cut with scissors along a ruler line and curling slightly in the window's heat. The tabs were the sign's reader-response mechanism and its public counter at once. A landlord could read the letting's performance from inside the parlour: tabs pulled evenly meant steady interest, tabs gone from the left edge meant right-handed passersby, tabs untouched after a fortnight meant the price or the street needed rethinking. A sign that stayed up after its tabs were exhausted told its own story, and a sign whose tabs were renewed every few days told a busier one. The tear-off tab is the direct ancestor of the portal's contact button, except that it kept a tally anyone could read from the sidewalk, and it asked the interested party to do something the button never quite requires: stand in front of the actual building, on the actual pavement, and decide.

Reading a street by its signs

A practiced reader could survey a market by walking it. Clusters of signs at the end of August in the student districts; a bare patch in January when nobody moves and nothing is let; two signs on one block meaning a coincidence, five meaning a rumour about rents or a building changing hands. The reader noted which signs came down within a weekend, because those were the good flats, and which went up again a month later, because those were the ones that had over-promised. The sign cycle even dated the landlord's habits: fresh card every season meant vacancies and renewals on schedule; the same bleached card for a year meant a long-standing flat nobody wanted at that price, or a landlord who had stopped minding. Vacancy had a face before it had a database, and the face was a slightly crooked rectangle of card taped behind parlour glass.

What the sign never said

It almost never said the rent. Rent was a conversation, not a headline, and withholding it was half the point: the sign filtered for people who wanted that street enough to knock, and it let the rooms make their case in person rather than on paper. It said nothing about heat, laundry, lease terms, or whether the superintendent answered at night. In exchange it offered a kind of geographic honesty no listing has matched. Standing on the pavement, you could read the stoop, the mailboxes, the state of the windows on either side, the snow shovelled or not shovelled on the walk. The sign told you the building's manners by showing you the building. What it concealed, the rooms, was precisely what the viewing was for.

Still up somewhere

The sign persists wherever the market is local enough to reward a glance: the duplex window, the main-street flat above the shop, the basement door with its own small notice at ankle height. It has outlasted the evening paper it once competed with, and it asks nothing of its reader but presence. At the board we file it as the purest form of the notice: one surface, one claim, one number, zero adjectives. Every listing format since, the counted line, the portal page, the photographed gallery, has been an elaboration on that card in the window. The lettings trade keeps inventing new ways to say it. The sign was already saying all of it.