1 Piastre 1875 , Turkey- Part Of Design Missing.

Hello !
Could someone please help with information about a 1 piastre 1875 ,Turkish stamp with differences in the overprint,the second stamp is for comparison.
I'm posting a stmp tath looks very much like the one in my collection .
The arabic letters of the overprint are the same ,but it's on yellow colored stamp not on orange.
The other difference is in the bottom frame of the stamp ,part of the design is missing.
How common is this and is this error described ?

Hard to understand what you are getting at.
1. Accurate identification, requires excellent scans at 600dpi
2. Scans of the entire stamp in question.

I am presuming the stamp like yours, could be anything,
taken by a iphone , poorly lit etc etc

The way I see it, all are normal Sc#40 1875 1 Pi (Plate B) stamps
I have them in bistre and Orange bistre.

The stamp production at the time, was, with respect, a tad haphazard
Impressions lacking detail, are quite common.

The stamp at the bottom, has an inverted Opt, I have not seen that before,
I'll check my catalogue/s

The Orange appears to be Isfila # 90RVl Turuncu

The invert # 90 ES47 Essay, Overprint inverted, and different
(Not listed as being ever used)
Possible forgery, or a new discovery
90 ES47 CV 1300 Turkish Lira circa $110 AUD 5 years ago

Caveat, I am only a student of Turkey, you need to confirm with specialists.
Check perf guaging is 13½

The color of the first stamp is an orange, not yellow. In any case, Michel gives two major shades, bright yellow and yellow orange.

Forgeries exist for this issue (4th overprint type). EDIT: The first (orange) stamp looks to be a forgery. It may just be the image, but the stamp looks quite narrower than it should be. The overprint is very different from the first yellow stamp which is genuine, although printed weakly.

The missing part of the bottom is probably what is called a short transfer, where the design is incompletely transferred from the master die to the printing plate. This is not uncommon for these issues. It is also considered a variety and is not an error.

Yes, there is a lot of variation in inking and design detail on these as the plates wore. They are available in various shades between yellow and orange. In the ISFILA Specialized catalog for the Duloz issues they show brownish yellow as the base color, with olive yellow, yellowish brown, yellowish beige and deep dull yellow for shades, the yellowish brown is close to a dull orange as illustrated. For the inverted overprint the only price they show is for the mint, at 150 times normal, the illustration though is of a used example, though with a different cancel than yours. There are also essays with overprint inverted which are much more common (25-30 times normal), so yours might just have a fake cancel. Best to submit it to them for a cert...

Rod222 , l would like to apologize for not posting a clear and more high resolution image of the stamp but l have some technical problems with my computer . I will try to provide a better image but l don't have the equipment needed to make such photo or scan. Tank you for the information tath you've provided. I agree with the oppion stated ,regarding the quality of the production of the stamps at this time,but the first part of my question concerns mainly the overprint on the orange stamp and the one on the inverter overprint. The shape of the letters of the overprint are identical each other . The stamp between them with the weekly printed text is very different as hy-brasil pointed in his post.
I don't know, maybe both stamps -the oranage and the one with the inverted overprint on it are forgeries . I'm also not an expert here ,tath's why l'm looking for help on this subject.

Apologies not required pe
I just make the point, that our advice, is commensurate with the quality
of the image supplied.

Giving advice, can be plagued with interpretation.

"so and so on SCF told me ....!" etc.

I am still confused as to what you want.
Is the last invert your stamp?

If not I can comment on the ones you own
I see 1 stamp on a black background, the other two on white
I do not want to comment on any scans just taken from the internet.

The world is full of trickery.

The turkey catalogues I own come in around $500 -$600
there is expense and time involved with giving accurate advice.
We like to give advice, as we learn also,
but always alert to avoid being "used"

The reason for clear precise, and detailed stamps of turkey
lie in the fact, we can toggle "genuine" stamps / overprints
with members examples supplied.
Therein, isolating minor discrepancies of the Turkish script overprints

Overprints often come in 3 or 4 varieties of each opt.

Hy-brasil, I looked through the cataloges l have on Turkey stamps
( except specialized, tath l don't have)
,but on all images showed there the stamps had a overprint tath is different from the overprint on the orange 1 Pi. stamp tath you have suspected to be a forgery. It has a additional dash on the left side of the text tath puzzled me. There is also a curve tath doesn't appear in the text of the other stamp .
I'm posting a 1 Pi stamp from the proper yellow-orange shade for comparison.
The first 1 Pi orange stamp looks like the other on the images below, the narrow effect is only a rezolt of my old camera.
I agree with your remark regarding the missing part of the stamp design, this is exactly wath l was trying to say.

The last inverted overprint stamp is not from my collection the image was provided to me by a nother philatelyst hwo observed tath both overprints- on his stamp and on my regular 1 Pi orange stamp looked very similar alludoy his was inverted. The second image is also not from my collection it's purpose was only to be used for comparison. The first stamp is the one tath l own ,l both it 20 yares ago with many other old Turkey stamps from the same period but l observed this difference some time ago . I'm sorry for misleading you,l didn't have any attentions to trick anyone here.
I understand that information provided by you is valuable and owning a specialized catalogs is very expensive investment.
I didn't formulated my question accurately enough and this may be the reason for not understanding it proper.
My thought here was to learn more about those small differences in the overprints tath l don't know much .

pe
you did not mislead me, just a problem with understanding what you were after.

I can see you are genuine, but here's the rub.

1. we need good scans, we need the guaging of the perforation.

Then we can Identify the stamp and the Overprint

2. The Overprint, reading left, clockwise, reads "Osmaniyye" "Devlet-i" "Posta-i"

the bottom script is the value indicator.

So, The overprint comes in 4 types, the gurush value (piastre) comes in two types.

Only crisp clear stamp images can we arrive a a confident stamp.

That's why I am unable to assist further.

Reading the vagaries of Turkish script, can be a headache.

Cheers