Green’s Dictionary of Slang

rafe n.

also ralph
[? Suffolk dial. rafe/ralph, a fool]

a pawnbroker’s ticket; cite 1882 is misreading.

[UK]Hotten Dict. of Modern Sl. etc. (2nd edn) 198: RAFE, or ralph, a pawnbroker’s duplicate.
[UK]Sl. Dict.
[Aus]Sydney Sl. Dict. (2 edn) 7: Rafe (or Ralph) - A pawnbroker’s assistant.