Ideal for detecting phosphor papers and inks for the majority of 20th century Machin stamps of Great Britain, plus Israel, USA, Finland and the early phosphors of Canada, Norway, Mexico, France, Hong Kong, People's Republic of China, Russia and later issues of Canada and Mexico. Shows fluorescent bands, papers abd the other devices
Highlights cleaned pen cancellations and paper repairs
Powerful bulb gives much stronger reaction than other lamps
Effective in daylight/artificial light using special eye-piece
Safe to use due to shielded UV light
Spectrum of 254 to 390 nm both 'short' and 'long' wavelengths
Lightweight pocket-size - ideal for fairs and exhibitions
Long-life bulb will give 50,000 hours of use under normal viewing conditions
"I have to admit that I’m not always too keen on what they like to call ‘embracing new technology’ ...However, now and again something comes along that I feel I just have to have" - Hugh Jefferies, Stanley Gibbons Catalogue Editor.
The presence or absence of phosphor can be a significant feature in assessing the value of a stamp, so having a lamp of your own and knowing how to use it can be a valuable asset in building up a good collection.
There are a number of lamps on the market, but, to be honest, none that we would be prepared to put the Stanley Gibbons name on – so we set about developing one ourselves. To do that we looked at what was wrong with all the others and tried to right those wrongs.
"Terrific...I was able to find the phosphor number of FH14 which I had not found with a standard mains UV lamp. The new SG UV lamp has paid for itself in finding one booklet alone catalogued more than the purchase cost in going through booklets that I had catalogued as p-. Together with the Pro10 I was able to record the phosphor, something I have been unable to do before." - Graham Stirling, very happy customer.
Some lamps may be cheap but they are potentially damaging to the eyes if looked at for a prolonged period – added to which an exposed bulb was susceptible to damage and could require regular replacement.
Other lamps required mains electricity, which was not handy for use away from home and, above all, many had a tricky on-off switch which made them difficult to use. Of course the main problem with most ultraviolet lamps is that they are fine for night-time use, but pretty useless in daylight – which means you cannot use them effectively at stamp fairs, club meetings or shops.