Czechoslovakia 1920 15 Heller Perf 13,75 - Value?

Hi, I got below old Czech stamp from around 1920. It should be perforation 14, but if I measure using a Lighthouse gauge it is clearly 13,75. For the 5 Heller this difference matters a lot; the 13,75 version has much higher value! On internet I found suggestions that such version may exist for the 15 denomination as an 'unreleased' stamp. However, this one is clearly cancelled. Anyone?

Hi,
it would be helpful for us, if you can advise the catalogue you are using, and a link to the internet site you referenced.
With all the information at hand, we can make better judgements.

looks fake to me. wrong O's wrong color..
Try bitcoins for value

@Perf12, I thought you would say it looks fake. I got the impression it looked iffy.

Certainly the wrong colour, but a darn good forgery if it is.
The image is just about perfect with mine.
The "D" of the inscription JAR BENDA wobbles out of line.
The design is just about identical.

Note: It is a 15 heller, not 5 heller.

That "D" may wobble, but it is going another direction and seems to have infected more letters. Also, it looks like a photogravure stamp, instead of a typography stamp. It also tends to have defined lines where you do not see them in your example, but become blurry where your example looks better defined. The overall appearance also looks like a poor quality printing.

I have doubts about rod's stamp also.

All, thanks for your useful insights so far. For what it's worth, here are my other 1920s Chech stamps for comparison.

There you go ...they look good..
Rods stamp would be from plate 2.
https://knihtisk.org/04-allegory/allegory.htm

Thanks, so I conclude my odd coloured 15 is a forgery. Quite a good one to my modest opinion.

Unofficially the 5 haler blue, 10 haler green
and 15 haler values were printed with line
perforation 13¾. An unknown quantity fell
into the hands of collectors. They are not
known used. The color is from the Scan ? It has the characteristics of a plate 2.
https://www.rpsl.org.uk/rpsl/Displa...1208_001.pdf

Wow!
Thanks Perf 12,
Philately never ceases to get better and better.
Marvellous work.




Can you please advise how you came to that conclusion
I was a deer in the headlights with that plating.

What aspect did you hone in on?
I was beginning to think, mine a forgery also.

These are not easy to plate because of the printing and inking but
The signature has an identity of it's own.At least I think so.
In the Knihtisk link it would be plate 2,pos.40.

Extraordinary!
That takes some serious squinting Perf12..Thanks.

Internet also refers to an 'unreleased' perf 13 3/4. That would be 'plate 1' then? I'm a bit stuck now on the colour; it can always be the scanner I use, but with the naked eye the stamp is more purplish than brownish. Then again, if mine is plate 1 it is odd that it was used....suggesting plate 2. And then there is the 'D' story also pointing in that direction, if I understand correctly.

At least not a forgery then?

Here is a picture with my phone in daylight, no flash. I also showed the 13 3/4 fits perfectly, while the 14 is just a tiny little bit off (not really convincing). The D is definitely not bent.