advertisement conveyancer, n. — Green’s Dictionary of Slang

advertisement conveyancer n.

[the euph. term (PC long before its time) was coined by W.E. Gladstone (1809–98) and duly mocked by London society]

a sandwich-man.

1909

(ref. to 1883) J. Ware Passing Eng. of the Victorian Era 2/2: Advertisement Conveyancers (Soc. 1883) Street Advertisement Board carriers [...] Brought in by W.E. Gladstone (2nd May 1883), during his speech at the inauguration dinner of the National Liberal Club.