(See Blue Peter.)
Great Peter. A bell in York Minister, weighing 10 3/4 tons, and hung in 1845. Lord Peter. The Pope in Swift's Tale ej'a Tub.
Rob Peter to pay Paul. (See Robbing.)
St. Peter. Patron saint of fishers and fishmongers, being himself a fisherman. St. Peter, in Christian art, is represented as an old man, bald, but with a flowing beard; he is usually dressed in a white mantle and blue tunic, and holds in his hand a book or scroll. His peculiar symbols are the keys, and a sword, the instrument of his martyrdom.
He has got St. Peter's fingers —i.e. the fingers of a thief. The allusion is to the fish caught by St. Peter with a piece of money in its mouth. They say that a thief has a fish-hook on every finger.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894