Barnfind ...Help for identification

A big car Bosch headlamp ... looks to me like a 40's 30 ';s part

a Ford Fuel / oilpressure gauge from 20's 30's ?

and a nice working speedo in Km ... the guy who gave them to me told me they are from a Benz .

If anybody can identify any part  it would be nice to share the info with us !