When was the word co-ord first used?

Question

The word co-ord means

one of two or more pieces of clothing that are made in matching colours or styles so that they can be worn together

When was this word first used in this sense?

Answer 1

The word is an abbreviation of co-ordinates, which itself likely comes from coordinated outfit. The Oxford English Dictionary traces a specific usage for women's clothes to the late 1950s ("co-ordinate, adj. and n," 3):

plural. A set of women's clothes matched as to colour or fabric or other features.

1959 Vogue Mar. (advt.) 120 Knitwear and Tweed Co-ordinates..by Munrospun.

1962 Punch 14 Mar. p. xiii. Harrods have French beachwear, cashmere co-ordinates.

1969 Sears, Roebuck Catal. Spring–Summer 143/2 (heading) Coordinates in cool cotton fabrics.

For instance, here is the term in a snippet from a 1959 ad (Evening Star, 2 April 1959, page A-10, via Chronicling America):

The abbreviation could have happened as soon as the word was understood, since co-ord is generally an abbreviation of co-ordinate. This snippet from a 1960 ad shows the adjective form abbreviated as "misses' co-ord. shirt and short sets" (from New York Times, 30 Apr 1960, p. 7, via ProQuest):

The earliest example I've found as a noun is from 1955, "CO-ORDS" in a list with "SKIRTS," "JUMPERS," and other items (The Atlanta Constitution, 24 Nov 1955, p. 2, via ProQuest):

That suggests there are earlier examples of both co-ordinates and, possibly, co-ords to find.