This advertisement for Kollsman appeared in Aero Digest, April, 1935:
KOLLSMAN FOR PRECISION

The 1935 Models of BEECHCRAFT are equipped with
.
KOLLSMAN
.
PRECISION AIRCRAFT INSTRUMENTS
• The same characteristics of accuracy, dependability and performance
which have gained a world-wide reputation for the Kollsman Sensitive
Altimeter are also inherent in all our engine and flight instruments.
KOLLSMAN INSTRUMENT COMPANY, 5 JUNIUS STREET, BROOKLYN, NEW YORK
Branch office (beginning April 15) Grand Central Airport, Glendale, California
ALTIMETERS· SENSITIVE ALTIMETERS· COMPASSES. NAVIGATION COMPASSES. NAVY STANOARD COMPASSES • AIR SPEED INDICATORS· LEVEL FLIGHT INDICATORS
ICE WARNING INDICATORS· ENGINE GAGE UNIT. TACHOMETERS. MANIFOLD PRESSURE GAGES • FUEL QUANTITY GAGE· OIL, WATER AND CABIN THERMOMETERS
APRIL, 1935

