1960s vintage microphone. New in box. Great for harmonica

Please see my video demonstration (playing my DM 9 through a 15 watt solid state amp) on YouTube: https://youtu.be/ss_Cm1Ezvuc?si=JG_t3o6mnUdvkBx2 This is a dynamic microphone made in Japan in the 1960s, New in Box!. Calrad model DM-9. Unplayed and pristine. These are well regarded high impedance micro...