Green’s Dictionary of Slang

coriander (seed) n.

money.

1693		Proc. Old Bailey 12 Oct. n.p.: Examining his Pockets, his Stock grew low, not of Confidence, but of the Coriander, which put him into a sudden and strange Consternation.
1737		Ozell Rabelais IV ix: The spankers, spur-royals, rose-nobles, and other coriander seed with which she was quilted all over [N].
1784		Reading Mercury 3 May 4/2: O! my dear, I understand you (taking out his purse) here are corianders that will purchase hides enough.
1797		‘T.B. Junr’ Pettyfogger Dramatized I ii: The best of us are now and then in want of coriander-seed.
c.1800		‘A Scene in the Election’ in C. Hindley Curiosities of Street Lit. (1871) 69: Here are corianders that will purchase hides enough.
1809		G. Andrewes Dict. Sl. and Cant n.p.: coriander seed money.
1811		Kentish Gaz. 16 Apr. 3/5: She had the coin, had she? the corianders, perhaps, as you call them in this country? I mean a woman of property.
1822		R. Nares Gloss. (1888) I 191: coriander seed. A familiar and jocular term for money. The seeds of coriander being hemispheres, flattened on one side, may perhaps have given some rude idea of pieces of money.
1823		Devizes & Wilts. Gaz. 28 May 2/4: Almost all the London ring was down on the occasion — at least all who could muster the corianders.
1828		Edinbury Gleaner 6: Say no more, my dear boy, says the master, you shant vant the corianders whilst you stay vith me.
1839		Bell’s Life in London in Fights for the Championship (1855) 142: The corianders foe the Dead ’Un having been found by Corinthians of the first order.
1842		Era (London) 27 Nov. 10/3: At length the wished-for sound [...] was heard, and the gingling of ‘corianders’.
1849		Bell’s Life in Sydney 31 Mar. 3/1: The tyro looks upon the lectures of his ‘Governor,’ as a sort of grumbling accompaniment to tho clinking tune of the ‘golden corianders,’ out of which he wheedles the old gentleman.
1864		Stirling Obs. 21 July 5/2: None of the aspirants for Kilmadrock ‘corianders’ could congratulate themselves on any great measure of success.
2001		ONDCP Street Terms 6: Coriander seeds — Cash.