NEW ELTHAM, LONDON, S.E.9 
371 
N.B.—The full “ Hezzanith ” Navigational Instruments Catalogue is available on request. 
Quote Stanley’s ’A’ Catalogue 
PRISMATIC BINOCULARS 
THE “ ROSS ” 7 X 50 STEREO PRISM BINOCULAR 
A 7-power binocular with large prisms and 
lenses and eyepieces of special design. Perfect 
definition is maintained over practically the 
whole field. Objects can be picked up and 
clearly seen immediately they enter the field 
of vision. These qualities of great luminosity 
make this binocular unsurpassed for the use of 
Officers of the NAVY and MERCANTILE 
MARINE, YACHTSMEN, HUNTSMEN, 
SURVEYORS and others. 
SPECIFICATION 
Magnifi 
cation 
Effective 
Diameter 
of O.G. 
Real 
field 
of 
view 
Linear 
per 
1,000 
yds. 
Stereo 
scopic 
power 
Weight 
of 
Binocular 
7 
50 mm. 
7° 
122 
14 
34 oz. 
A9296 
A9296 “ Ross ” 7 x 50 Stereo Prism Binocular, complete in Leather Case. 
“ HEZZANITH ” MARINE GALILEAN BINOCULAR 
The main feature is its remarkable light 
gathering qualities, so essential for observation 
at dawn and dusk, or in hazy weather. 
Centre Screw Focussing ; 26-Line, 6-Lens. 
Vulcanised Body ; Leather Sling Case. 
APPROXIMATE SPECIFICATION 
Dia- 
Linear 
Diameter 
meter Field of View 
Field 
of 
Linear 
of 
at 
Emergent 
Magni- 
Clear 
1,000 
Pencil 
fi cation 
Aper- 1 * 1 
ft. 
of 
ture Angular Apparent 
Light 
2\ 
55 mm 7° 19° 
122 ft. 
1 1 J mm. 
A9298 
A9298 “ Hezzanith ” Marine Galilean Binocular, complete in Leather Sling Case.