Green’s Dictionary of Slang

quill n.2

[senses 1 and 2 ext. of SE; others ety. unknown other than in their relationship to the earlier senses]
(drugs)

1. a folded-over matchbook cover that hides a narcotic drug.

[US]New Republic VI 22 Apr. 314–6: As it [i.e. heroin] is sniffed through the nose on a ‘quill,’ the addict could take it without much fear of being interfered with.
[US]R.R. Lingeman Drugs from A to Z (1970) 218: quill Folded matchbook cover used to sniff a drug. The drug (heroin or cocaine) is placed in the fold and then inhaled through the nose.
[US]D. Goines Street Players 11: Duke bent over the table and tore off a piece of matchbox cover. He quickly creased the torn piece down the middle and stuck one end of the quill into the white powder.
[UK]J. Morton Lowspeak.

2. anything, e.g. a dollar bill, rolled up to make a ‘straw’ through which to sniff a powdered narcotic.

[US] in Smith & Gay Heroin in Perspective (1972) 101: A tapered, rolled-up dollar bill which served as a straw, and was called a quill.

3. methamphetamine.

[US]ONDCP Street Terms 17: Quill — [...] methamphetamine.

4. heroin.

[US]ONDCP Street Terms 17: Quill — [...] heroin.

5. cocaine.

[US]ONDCP Street Terms 17: Quill — Cocaine.