English Jettons vary in size and thickness, but invariably have a punch mark in their centre, which may pierce the flan if very thin. Jettons with neat central holes about 1 mm in diameter are likely to have once been converted to badges by the addition of a rivetted clip. A considerable number of complete badges have survived. Italian (Lombard) jettons exist with very similar designs to English, but without the central hole punch mark. This suggests that some English jettons were struck in England for use by the Italian bankers who took over financing after the expulsion of the Jews in 1290. Jettons with more than one hole have probably been reused as buttons. The punch mark is invariably in the centre of the flan rather than the design.