Countries With No Overprints.

Kuhli, South Georgia would be considered different.
Fujeira & Ras Al Khaima Scott's listing were used they show no overprints.

Just remembered another: Tibet. The Chinese Post Office in Tibet used Chinese stamps overprinted and surcharged in Annas, but I guess it could be hived off into a separate category.

More To be Considered:
Northern Poland
Southern Poland
Checiny
Luboml
Opatow
Otwock
Przedborz
Carpathian-Ukraine
Wenden
Army of the North
Akhtyirka
Alatyir
Alexandria
Ananief
Ardatef
Arzamas
Atkarsk
Bakhmut
Balashof
Belebey
Berdyansk
Bobrof
Bogorodsk
Boghuchary
Borisogiyebsk
Borovichy
Bronnytzy
Bugurusian
Buzuluk
Byezheisk
Chembary
Cherepovets
Cherkassy
Chistopol
Dankof
Demiansk
Dmitrief
Dmitrof
Dnieprovsk
Donez
Dukhovsischina
Gadiach
Gdof
Glazof
Griazovets
Irbit
Kadnikof
Kamyishlof
Kashira
Kassimof
Kazan
Kherson
Kholm
Khvalynsk
Kirillof
Kobelaky
Kologrif
Konstantinogad
Korcheva
Kozelets
Kapivna
Krasnoufimsk
Krasny
General Miller

Apart from Alexandria, I've never heard of any of these as separate stamp issuing entities. Please excuse my ignorance. What are they?

Russian locals.


http://www.rossia.com/stamps/frzemstvo.htm

and the Chuchin catalog that lists them all.

http://www.ebay.com/itm/Russia-Zems...110664888411

The bulk are known as Zemstovs local Russian stamps that were allowed by the central government for mail in areas not covered by the Imperial Post for locally use & connect to the Imperial Post. There are a very interesting area to collect, rarer but many are affordable. Most of the Zemstov stamps are of high quality. Most never used an overprint but a number have and I've of course omitted them already. More to come!
The the start of the list is Poland with locals during & after WW1.

Cont'

Kremenchug,
Kungur
Kuznetsk
Lahishef
Lebedian
Lebedin
Lgof
Livny
Lubny
Luga
Malmyzh
Maloarangelsk
Mariupol
Morshansk
Nicolsk
Novays Ladoga
Novgorod
Novomoskofsk
Novorzhef
Novouzensk
Odessa
Opochka
Orgheef
Osa
Ostashkof
Oster
Ostrogozlisk
Ostrof
Pavlograd
Penza
Pereslaf
Pereyasiaf
Perm
Petrozavodsk
Piriatin
Podolsk
Porkhof
Priluky
Pudozh
Rostof
Ryazan
Ryazhak
Rzhef
Samara
Sapozhok
Saransk
Sarapul
Saratof
Shatsk
Shchigry
Shlisselburg
Skopin
Smjeinogorsk
Smolensk
Solikamsk
Soroki
Spassk
Staraya Russa
Starobyelsk
Stavropol
Sudzha
Sumy
Syzran
Tambof
Tetyushy
Tiflis
Tikhvin
Tiraspol
Totma
Tula
Twer
Urzhum
Ustiuzhna
Ustaysolsk
Valdai
Valki
Vasil
Veliki Ustyug
Velsk
Yerkhnednieprovsk
Verkhotur
Vessiegonsk
Vetludga
Viatka
Volchansk,
Volsk
Yarensk
Yassy
Yegoryevsk
Yekaterinburg
Yekaterinoslaf
Yelets
Yelisavetgrad
Zadonsk
Zemliansk
Zienkof
Zolotonosha
Helsingfors (Helsinki, Finland)
Tammerfors (Finland)

More,

Scinde (Pakistan formerly British India)
Aalesund (Norway)
Aarhus (Denmark)
Amazonia (Brazil)
Amiens (France)
Barranquilla (Columbia)
Bejuma (Venezuela)
Bergen (Norway)
Caracas & Petare (Venezuela)
Chagai (Pakistan formerly British India)
Christmas Island (Pacific Ocean)

Afraid you'll have to scratch Chagai (the Chagai Hills). They only exist as overprints: handwritten or typed 'SERVICE' overprints on British Indian stamps from the Second World War.

Fujeira
Apart from any souvenir sheets, SG and Michel show the original definitive issues from 1964 were overprinted in 1967 for the currency name change.

Tonymacg, The Chagai I was refering to was the Chagai Post operated by Capt. Ware during the years 1888-9.

I've done a bit more digging on the Chagai Local Post, and I still think you'll have to delist it. It's now thought that these rubber-stamped stamps were applied directly to the covers, and that surviving loose examples are cut-outs. There was a discussion of the Post in the India Study Circle journal India Post in 1997.

And an entry for the most exotic piece of trivia of the year: The Chagai Local Post was operated by a Francis Webb Ware, who was born in 1866 on a sheep station on the banks of the Yarra River in Melbourne, just a couple of kilometers upstream from where I sit.