SEMAPHORE FAMILIARIZATION: PARTS I-IX

Part IV is 125ft for $3.34. All other parts are 150ft for $3.32. Parts IV, V, VI, VII and IX are silent. These US Navy films show a signalman relaying messages from a ship by use of flags at various rates of speed.
Complete catalog record
Dewey number: 621.38
Audience level: sh-c-trade-adult
Format/cost: 16 1944
Distributors / rental: Bell & Howell Company; Sunray Films Company; Dayton Film Rental Libraries; Visual Art Films; Wilfred Naylor; A. H. Rice and Company; Visual Education Service, Inc

Sources

  1. Educational Film Guide 1946 — title, creator, length, format, description, catalog record