Bushman Delta Frost Replacement Reed Plates - Key of A Delta Frost Reed Plates A Bushman offers replacement reed plates for the Delta Frost harmonica Not only are the reeds made of long lasting, tune-holding Phosphor Bronze, but the plates come mounted on the comb Just take the cover plates off your old Delta and put them on this new unit and you're back in business Bushman offers replacement reed plates for the Delta Frost harmonica