illuminated Recognition Signs for A.R.P. vehicles O NLY vehicles proceeding on
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urgent duty will be allowed to use a head lamp (masked, of course), after an airraid warning has been sounded. An indication of the service on which the
vehicle is engaged must, therefore, be given, if it is to avoid being stopped by officers controlling traffic. Appreciating this fact, Trico-Folberth, Ltd., Great West Road, Brent. ford, London, offers masks, designed for application to the other headlamp, which display a suitably screened illuminated sign, bearing the letters " A.R.P." "FIRE," " A " (ambulance), " P " (police) or others to show on what duty it is being operated and. to afford evidence of its right to continue.
An accompanying illustration shows a specimen of one of these signs. It will be noted that it is fitted in place of the lamp glass in just the same way as an ordinary mask. The price of the sign in six standard sizes from 6I ins. diameter to 9 ins, diameter is 4s. 6d., whilst non-standard sizes cost 5s. 6d. We understand that " reasonable expenditure incurred on these lettered signs will be allowed to rank for grant."