I Am Trying To Identify These Stamps. Thank You For Your Help!

I am going to post few stamps which I am trying to identify.

First is INDO-CHINE 50c (pinkish red) I was able to find just 50c green, year 1927.

Thanks for any advice.

Interesting. Not a real stamp, whatever it is. It's so nicely printed. Both 135 and 136 are inscribed INDOCHINE (no dash) and the letters here are taller and differently shaded from 136. They also fixed the slight bow in the bottom frameline (overinked in the 136 shown below; not mine). It's torn like someone put a saw blade against the paper and pulled up.

Compare with 136:


May I ask, anything on the back?

Back

USA - 1917 George Washington
Could somebody help with type of perforation, please?

No idea what you mean by "type of perforation", but do you have a gauge? If not you may print one from Stampsmarter


Peter

https://goscf.com/t/80387#730965

Thank you, everything is clear now. I found there exactly what I was looking for. Thanks a lot again :)

"Textile industry," designed by Paul Peter Ndembo (1945- ), printed by lithography, and issued by Tanzania on April 1, 1985 as one of a set of four stamps publicizing the 5th anniversary of the Southern African Development Co-ordination Conference, Scott No.254."
I wondering, is this priceless stamp with kind of nice error situated near chimney (stain/cloud) worth cert.?

Hi Argos. I do not see an error, but the small dot above the chimney looks like a freak. Most likely a just one of a kind thing


Peter

What makes you think that it is priceless? Is the spot of extraneous ink worth a cert? Only if you like burning money.

Run finger lightly over it and back again. If you feel it, than it probably is a piece of dirt that would lift right off surface, because to me it sure looks like it. Just my observation.

Here is the detail. It is no dirt, and I do not think that somebody was bored and made dot, but who knows. I kind of like it :).

Looks like a spat of ink flew off of someplace. Nice freak, but unless you find another one just like it not anything unusual.


Peter

What intrigues me, is the selvedge !

a "D" followed by a period, then a comma.
Ergo the "D" must be considered spelling?

ex: Smith D.G., is.....

Any English specialists aboard?
Any Idea of the printer's name in the selvedge?

Any other reason a comma would follow a period?

It's a full stop, dear boy. Logically, LTD., an abbreviation followed by a full stop, then a comma.

Printer's imprint: xxxx Ltd., Leeds, England.

Format International Security Printers Ltd.?

Nope:

John Waddington Security Print Ltd. was located in Leeds.

So to wrap up discussion of the Tanzania item: neither the stamp with its apparent error nor the selvedge is anything special.