Green’s Dictionary of Slang

altamel n.

also altemal
[18C Du. altemal, wholly, all at once]

(UK Und.) a financial summary or account produced without detail and demanded as a lump sum.

[UK]B.E. Dict. Canting Crew n.p.: Altemall, altogether.
[UK]New Canting Dict.
[UK]Bailey Universal Etym. Eng. Dict.
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Altamel, [...] A verbal or lump account, without particulars, such as is commonly produced at bawdy-houses, spunging-houses, &c.
[UK]Lex. Balatronicum [as cit. 1785].
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue [as cit. 1785].
[US]Matsell Vocabulum 8: altemal All in a heap, without items; the sum total.