Distinguishing the main different stamp printing methods

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lithograving
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Distinguishing the main different stamp printing methods

Post by lithograving »

I noticed a few times where new forum members have difficulty differentiating between various printing methods of certain stamps.

I don't know if the following would be useful, but it is interesting.

The Austrian Building series 1957/70 1 Schilling stamp comes in 4 types of printings.

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Engraved/intaglio
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Typography/letterpress
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Offset/ lithography
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Photogravure/ gravure. This smaller version, a coil stamp was actually printed by Harrison & Son
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Re: Various Printing Methods

Post by JACKPL1943 »

I find it difficult to see any difference in the first 3, the photogravure is easy to tell. Maybe a written detail for each will help

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Re: Various Printing Methods

Post by lithograving »

The engraved stamp compared to the typo and litho has very fine lines, sharper detail also notice the cross hatching around the 1S.

Its more difficult to see the difference between typo & litho I agree.

The typo has more of a coarse look, edges not too well defined/uneven, coloured areas appear blotchy whereas in litho the edges are neater, colour is more evenly distributed.

Lithography is just sharper and more detailed than typography which more or less remind me of old woodcuts.
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Re: Various Printing Methods

Post by lithograving »

Here are a couple of more examples which shows the difference between typography and lithography quite well.
They are fro the East German (DDR) Five Year series, ugly stamps but interesting since they have a lot of varieties and also where officially reprinted.


Typography. Shading done with coarse lines

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Lithography/Offset. Shading done with dot screening

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Typo

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Litho

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Image

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Re: Distinguishing Various Printing Methods

Post by Malaya »

lithograving wrote:Lithography is just sharper and more detailed than typography which more or less remind me of old woodcuts.
I got excited when you mentioned woodcuts, as that is one thing I like about the stamps I collect as shown below, which are relatively 'coarse' compared to the market trends. 8)

All of these are typographed stamps about 25mm high including perforations, showing some of the slight variations that can occur depending on paper texture and ink opacity/viscosity.

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I do wish some of them had been done in intaglio; it would have been awesome.

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Re: Distinguishing Various Printing Methods

Post by michailUK »

Malaya wrote:All of these are typographed stamps about 25mm high including perforations, showing some of the slight variations that can occur depending on paper texture and ink opacity/viscosity.
These are some really impressive pictures Malaya! May I ask, what equipment are you using?

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Re: Distinguishing the main different stamp printing methods

Post by Malaya »

michailUK wrote:These are some really impressive pictures Malaya! May I ask, what equipment are you using?
michailUK - thanks for your compliments, I'm glad you liked the pictures! I use a digital SLR camera with a macro lens on a tripod.

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Re: Distinguishing the main different stamp printing methods

Post by Florian »

You can still enlarge lithograving's blown-up images without loosing any of their sharpness by holding the Ctrl and clicking up to six times on the "+" key on the right-hand side of the key-board.

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Re: Distinguishing Various Printing Methods

Post by michailUK »

Very useful information, thanks everyone! I have been trying to sort out some Greek stamps from two issues depicting mythological figures: the first one is engraved and was in circulation between 1911-1921, whereas the second one is lithographic and dates back to 1913-1924. I know for sure that the 15 Λεπτά (Lepta) and 80 Λεπτά stamps belong to the lithographic one:

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However, if I didn't know that these were unique to the lithographic issue, I wouldn't have guessed it from the appearance, since I don't see the dot-screening pattern mentioned before.

Here is another example, this time same values printed in what appears to be the two methods:

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From the cancellation on the second one (30.5.25) it seems that it belongs to the lithographic issue, and its appearance is indeed of lower fidelity than the first one.

As a final example, here is a stamp from a later issue (1942-1944 Landscapes). As far as I know there are no variations in the printing method here; yet, notice the thicker lines and fuzzier appearance of the second stamp (which also seems to exhibit the dot-screening pattern).

Image

It is possible that the second one is a fake, but I am not sure why would someone counterfeit a stamp with catalog value about 0.20 Euros!

I guess my questions are: how can one distinguish between different printing methods (in this case engraved versus lithographic) without being fooled by variations of the same method (dirty plates, too much ink etc...). Also, does the lithographic method always exhibit the dot-screening pattern?

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Re: Distinguishing the main different stamp printing methods

Post by Malaya »

Here's one of the Malaya Straits Settlements Survey Department essays of 1933-4, reportedly printed with zinc-plate lithography (Wood 1948).

ImageImage
Norris Type V variety - see Norris (2003)

I don't think lithography always has a dot-screening pattern as it is a matter of the design rather than the printing - correct me if I'm wrong. In this case it looks very much like typographed except that it does not have the "squeezing" of ink at the edges.

References

Norris, A. 2003. Survey Department essays of 1933—34: some new information. The Malayan Philatelist 44:88—97.

Wood, F. E. 1948. Straits Settlements Postage Stamps. Coedfa.

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Re: Distinguishing the main different stamp printing methods

Post by Malaya »

Another opportunity to compare typography and lithography presents itself in the famously stolen 1889 Gold Coast Queen Victoria Imperium Universal Unified Key Plate 20s issue (SG24) and its Sperati forgery:

ImageImage

It is not easy to tell the difference even at very high magnification:

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De La Rue typographed

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Sperati lithographed

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De La Rue typographed

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Sperati lithographed

Close examination reveals harder edges in the typography, partly due to ink squeezing.

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Re: Distinguishing the main different stamp printing methods

Post by AMark »

Giving this thread a bump, since we had a recent thread asking what the difference is between Lithography and Typography printing. :)
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