Collotypes, which provide the finest detail of all printing methods are sometimes confused with real photo postcards.
But even collotypes will exhibit a discernible grain when magnified.
This too is not foolproof for many publishers had large stocks of photo papers using them for decades after they stopped being manufactured.
NOTE: There were many other photo papers manufactured in addition to those listed on this page, and even these could be made in different finishes from matte to glossy.
lthough real photo postcards were made in a variety of ways, they hold one identifiable feature in common.
When no postmark is available, the type of materials used can often aid in narrowing down the years it may have been produced in.Annually (to mention just a few) there are Club weekends planned in Scotland, Suffolk, Herefordshire, and Yorkshire If this still has not convinced you of the value of membership, then consider that for its members the Club has some great deals with insurance companies – you could even save your membership fee on reduced insurance costs.Full UK personal membership costs just £15 per year plus an initial one-off joining fee of £2.50, and you can include your spouse/partner for a further 50p… Click onto “CLUB MEMBERSHIP” above and sign up – do it now, you won’t regret it !And of course any image that contain a regularly patterned series of dots is not a photograph at all but a ink printed image.Some halftone cards were printed on high gloss paper to resemble a photograph but their screen patterns will give them away if one is vigilant.