Vintage GE AG-1B Blue Dot Flashbulbs Lot of 10 : 6-Clear & 4-Blue with Box

Description

Vintage GE AG-1B
Blue Dot Flashbulbs
Lot of 10
6-Clear & 4-Blue
with Box
Millions of vintage cameras (especially the
Kodak Instamatic cameras here in the US)
use flash bulbs.
Most cameras that use flash bulbs have the
bulb number needed listed inside the camera.
Single use bulbs.
6 clear an 4 blue.
New, unused lot of 10 glass flashbulbs.
Blue bulbs for color photography.
Partial sleeves in box.
All bulbs are sealed with blue dots, no pink dots.
Box has some wear.
See photos for more detail.
All flashbulbs create a lot of heat when fired, so some safety
precautions are necessary to avoid burning your fingers when
installing and removing them from the flashgun.  The bulbs can
be set off by static electricity, so carrying loose bulbs in your
pocket is discouraged.  Although bulbs can crack when fired,
they
seldom explode, but it does happen, so a shield should be
used
over the reflector, especially indoors or when shooting close
to
a
person.  The bulbs most likely to explode are those where
the seal
at the base has failed and air has been sucked into the
bulb.  This
raises the initial gas pressure in the bulb, and when fired,
the sudden
expansion of the gas due to the heat can raise the pres-
sure above
the
bulb's burst pressure, causing it to shatter.  To identify
the problem,
manufacturers began to put a spot of blue cobalt ("blue
dot") inside the
bulb which will turn pink when exposed to air.  Bulbs
whose dots are pink
should not be used.