You might want to be aware of Jerusalem used as Cockney rhyming slang in the music hall song - "Me Jerusalem's dead". "Oh you won't see him pulling the barrer no more, as me and the missus are hauling the coke, 'cos he died 'sarternoon about quarter past four, well I think that it's harder on me than the moke." "Jerusalem" was an abbreviation for Jerusalem artichoke.....

Kitty