Green’s Dictionary of Slang

mason n.1

[the stereotyping of Freemasons as dishonest]

(UK Und.) one who acquires goods fraudulently by giving a bill that they do not intend to honour; thus masoning n.

[UK]J. Poulter Discoveries (1774) 9: We would buy a horse or two, and give our Notes for the Money, telling the Dealer we lived at a Town where we did not. This is called Masoning. [Ibid.] 17: He did not know that they were stolen, but thought they were got on the Mason, i.e., for Paper.

In derivatives

masoner (n.)

(UK Und.) one who gives a promissory note in exchange for a purchase, with no intention of honouring it.

[UK]J. Poulter Discoveries (1774) 33: Masoners are a Set of People that give Paper for Goods. [Ibid.] 42: I’m a Masoner; buy Goods for Paper.
[UK]Whole Art of Thieving 14: Masoners are a sett of people that give papers for goods.

SE in slang uses

In compounds

mason’s maund (n.) (also mason’s mawnd) [maund n.]

a fake sore, placed above the elbow and counterfeiting a broken arm caused by a fall from a scaffold.

[UK]B.E. Dict. Canting Crew n.p.: Masons-mawn’d c. a Sham sore above the Elbow, to counterfeit a broken Arm, by a Fall from a Scaffold, expos’d by subtil Beggers, to move Compassion, and get Money.
[UK]New Canting Dict. [as cit. c.1698].
[UK]Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Mason’s mawnd, a sham sore above the elbow, to counterfeit a broken arm, by a fall from a scaffold.
[UK]Lex. Balatronicum.