Some will be repair or for parts, a couple might work. Nice collection here from a Broadcast TV company warehouse.
Electro-Voice Slimair 636 Microphone (chrome is heavily corroded, rust on steel screws, rust on steel screen)
Lafayette 99-4597 Dual Microphone (chrome is just starting to bubble in a couple spots)
Piezo DX-63 Microphone (chrome or paint is falling off everywhere, rust on steel parts)
Neat TM-7 Microphone (Paint is coming off, chrome on top is coming off in several spots)
Voice of Music Microphone (chrome is good, grill is good)
Philips LBB 305R Microphone (good condition)