Green’s Dictionary of Slang

angling-cove n.

[angler n. (1) + cove n. (1), i.e. ‘one who fishes in troubled waters’]

a receiver of stolen goods; thus angling, receiving stolen goods.

[UK]H.T. Potter New Dict. Cant (1795).
[UK]G. Andrewes Dict. Sl. and Cant.
[UK]Flash Dict.
[UK]G. Kent Modern Flash Dict.
[UK]Flash Dict. in Sinks of London Laid Open.
[UK]Duncombe New and Improved Flash Dict. n.p.: Angling receiving stolen goods and pawning them, or otherwise disposing of the pilfered articles. [Ibid.] angling cove a receiver of stolen goods.
[UK]Farmer & Henley Sl. and Its Analogues.