Offered is a pair of #1506 ignition contact arms of unknown make, to fit '25-'27 Olds JR8, 33-90, '27-'28 Pierce Arrow 36-80, '27-'28 Rolls Royce, and '23, '26, '27 Stearns Knight S, 95. These were identified from an illustration in a '29 American ignition catalog, and were listed under Autolite, but also DeJon.They have a distinctive flat rubbing block. Both may be a little tarnished, but they are NOS and unused.