Pilot's and Flight Engineer's Notes Short Sunderland III, 2nd Ed, AP1566C-PN CF-100 the transmitter frequency will have

the transmitter frequency will have changed

This indicator

typically with radio command sets SCR-274 and SCR-522

Here is a WWII-era aircraft Pitot Tube as used in aircraft of the German Luftwaffe

The Fl number is illegible

Pilot's and Flight Engineer's Notes Short Sunderland III, 2nd Ed, AP1566C-PN CF-100 the transmitter frequency will haveThis is a post WWII Air Data Publications reprint of the November 1943 Air Ministry Publication. Includes checklist, airplane handling, emergencies, foldouts of cockpit pictures and instrument panel. This ~50 page black and white manual is in very good condition. Measures 7. 5 inches long and 5 inches wide.