Stanley Gibbons Dual Wave UV Lamp

The archetypal tool to detect phosphor papers and inks for the majority of the 20th Century Machin stamps of Great Britain, Israel, USA, Finland and the early phosphors of , Norway, Mexico, France, Hong Kong, People's Republic of China, Russia and later issues of Canada and Mexico. The lamp has a spectrum of 254 to 390 nm (nanometers) and therefore covers both "short" and "long" wavelengths.

Ultraviolet Lamp features:

• Broad wavelength covers both short-wave and long-wave phosphors
• Detects fluorescent bands, papers and other devices
• Detects cleaned pen cancellations and paper repairs
• Powerful bulb gives much stronger reaction than other lamps
• Effective in daylight and artificial light using special eye-piece
• The eye-piece incorporates a watchmakers glass for viewing detail
• Plug provided for “sweep” viewing
• Quick release power button for easy use
• Robustly built with rubberised edges to withstand occasional knocks
• Lightweight pocket-size makes it ideal for carrying to fairs and exhibitions – no mains electricity supply required
• Long-life bulb will give 50,000 hours of use under normal viewing conditions
• Designed to give many years of use