Speaking trumpet

He passed his arm round a rope to steady himself, made a speaking-trumpet of his hands, and suddenly dropped them again without uttering a sound.

A short, square-built man, in a rough grey jacket, with a speaking-trumpet in hand, stood in the weather hammock nettings.

I made a speaking trumpet of my hands and commenced to whoop “Ahoy!” and “Hello!” at the top of my lungs. […] The Colonel woke up, and, after asking what in brimstone was the matter, opened his mouth and roared “Hi!” and “Hello!” like the bull of Bashan.

There was a battered brass speaking-trumpet, very discoloured, a tambourine, a musical-box, and a number of smaller objects.