The tag is cream, slightly foxed at the edges, and it carries three lines of typed instructions. Machine wash warm. Tumble dry low. Do not bleach. No little basin. No little triangle. No square with a dot inside. Just words, in a sans-serif that was already tired by the time it was chosen. The paragraph does the whole job by itself, and the fact that it does the whole job by itself is the first thing worth noticing.
Most people read a care tag the way you'd read a receipt — for the information, not the form. That's the wrong instinct here. The paragraph itself is evidence. A care instruction written entirely in prose, with no glyphs anywhere, closes off a range of years quite firmly. The absence is doing the work. And absence is harder to read than presence, because you have to know what should have been there.
The symbols we now take for granted — the wash tub, the triangle for bleach, the square for drying, the iron with its dots — were standardised in stages. Different bodies, different jurisdictions, different adoption curves. The American system and the European system did not move in step, and neither moved in a single year. A manufacturer could keep printing the old prose tag for a while after the symbols were available, because tag stock was ordered in bulk and used down. So the presence of symbols dates a garment forward with confidence; their absence dates it backward with a softer edge.
That softer edge is the interesting part. A three-line typed paragraph with no glyphs, on a domestic-market garment, is comfortable in the sixties and into the early seventies. It becomes unusual as the seventies close. By the mid-eighties it is a holdout, and by the nineties it is a curiosity — the sort of thing you see on a small maker who printed a decade of tags in one order and was still working through the box. So the paragraph alone doesn't hand you a year. It hands you a ceiling and a slope.
Style inside the paragraph narrows things further. The typeface matters. A serifed all-caps care instruction reads earlier than a lower-case sans; the sans-serif domestic tag settles in through the seventies. Line breaks matter — three short lines stacked flush left is a different era from a single justified block. The phrasing matters too. Do not bleach is older wording than the later non-chlorine bleach only. Warm wash predates the numeric temperature. Each of these is one observation. Together they tighten the window.
Then the symbols start to appear, and the reading changes. Early symbol adoption is partial — you'll see a wash tub and an iron, but no drying square, because the drying glyph came later in some systems. A tag with two symbols and a line of prose to fill the gap is a transitional tag, and transitional tags cluster in known years. A full set of five glyphs, cleanly laid out, is later still. The presence of the drying square with a circle inside — the tumble-dry glyph — is a firmer footing than the wash tub alone, because it entered the standard set after the basics.
Read the paragraph first, then look for what isn't there.
Country of origin phrasing rides alongside all of this and often settles the question. Made in USA in a serifed all-caps, on the same tag as a prose care paragraph, sits earlier than the same phrase in a lower-case sans beneath a row of glyphs. Fibre content wording shifts too — the percentages, the order they're listed in, whether the generic name or the trade name leads. None of these alone dates a garment. Together, with the care tag, they converge.
The habit worth building is this. Look at the care instruction as a layout before you read it as a message. Is it prose, glyphs, or both. If both, how many glyphs, and which. If prose only, what typeface, what phrasing, what line breaks. The stitch tells before the label does, and the label tells before the words on it do. The words are the last layer, not the first.
So you find the cream tag, foxed at the edges, three typed lines, no symbols. You don't need to name a year. You've named a shape — a garment made when the paragraph still did the whole job, in a decade when that was ordinary rather than a holdout. One observation, then you decide. The rest of the tag is still there to read, and the collar band, and the seam finish, and the selvedge if you can find it. The paragraph gave you the ceiling. The next feature gives you the floor.