No. 1 is some sort of telegraph mail-box, you spin the wheel and the
rods move and make a noise/current/switch closure

No. 2 part of a plumber's spanner

No. 3 a shingle knife

No. 4 where they put everyopne too stupid to write properly in school

No. 5 is a microphone

No. 6 is some sort of acoustic demostration/experiment apparatus, you
adjust the tension and free length, the holes in the box are to help
it resonate.