Physical description

Dark blue printed instructions on paper mounted on a buff coloured cardboard card.

Inscriptions & markings

LAMPS, SIGNALLING DAYLIGHT, SHORT RANGE
Lamp can be used either (1) on the spike and spike extension stuck in the ground or (2) in the hand if necessary, or (3) withe the adaptor provided on a standard helio stand.
SIGHTING TUBE: It is important to see that the lamp is so aligned that the distant receiving station is at the centre of the cross slots and maintained in that position the whole time that signals are being sent.
BULBS: when fitting a new bulb, insert the locating tongue on the washer to the front and push the stem right back in the slot.
BATTERIES: The correct replacment unit for this set is 8 "S" cells connected "in series". Screw up both terminal nuts tightly, ans see thar all connectors are in position.
NIGHT SIGNALLING: An adjustable screen is supplied for reducing the light and one of the colour discs should always be used in conjunction with it when signalling at night under enemy observation.
KEY CONNECTIONS. Use the two-pin plug in No.1 socket as long as the light is good enough, then cahnge to No.2. This will greatly lengthen the life of bulb. Used bulbs and batteries should not be relaced in the box, but discarded and a fresh supply obtained. Get a copy of detailed instructions "How to Use" this signalling outfit.
KEEP LENS, MIRROR, BULB AND FRONT GLASS CLEAN.