Vintage 1950’s Shure 98-108 / 98B99 ceramic harp microphone with cable Hi Z 777
I believe the 99B98 was the crystal variant while the 98-108 was the ceramic version. This particular mic was only made for about 10 or 15 years before being discontinued. You are looking at a very collectible older 1950's era Shure Brothers 98-108 ceramic microphone set at high impedance and was intended as an affordable, rugged "general purpose" mic.