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Ultra violet lights for postage stamp collecters?

Anonymous

∙ 15y ago

Updated: 10/20/2022

Black lights have several uses for a serious philatelist. On valuable stamps, ultraviolet light can reveal repairs. Of more interest is identifying tagging. Phosphorus inks placed on stamps were used to orient envelopes and apply the cancellations in the correct corner.

Wiki User

∙ 15y ago

What else can I help you with?

Do ultra violet lights kill germs?

Yes, they are often used to sterilise food for that very reason.

Which fish has capability to see both infrared and UV lights?

bees and butterflies can see ultra violet

Can ultra violet light be used for mobile phone communications?

no only mobile phone can communicate lights can't. :)

Individual wavelength of visible ultra violet?

Ultra violet light is not visible!

How do you say ultra violet camera in French?

une camÃ©ra ultra-violet

Is Ultra Violet DC or Marvel?

Ultra Violet isn't DC or Marvel she's Screen Gems

When was Ultra Violet - Bananarama album - created?

Ultra Violet - Bananarama album - was created in 1994-09.

Is ultra violet hyphenated?

Yes, "ultra-violet" is typically hyphenated when used as an adjective before a noun.

What has the author Eleanor Hilda Russell written?

Eleanor Hilda Russell has written: 'Ultra-violet radiation and actinotherapy' -- subject(s): Ultra-violet rays, Spectrum, Ultra-violet, Phototherapy

What is the comparison between visible light and ultra violet light?

You can see visible light but not ultra violet light.

What legendary pokemons do you find in Pokemon ultra violet?

all the legendaries in fire red and leaf green are in ultra violet.

What is ultra violet given out by?

The sun.