Unknown Chinese Stamps

I have been unable to identify these Chinese stamps in my Scott Catalog.
It is not a good scan, since my scanner is degrading, but I hope you can see the images. If I should have seen these in my Scott, but I missed it, please just tell me I should have found it! Any help would be appreciated. Thank you

Stamps 1 & 5
North West China
Stanley Gibbons SGNW0025 type NW9
Yenan Pagoda


Stamp 6
Scott 775 1948
Perf 14
CV $6 2009

Stamp 2
North China
Shanxi-Chahar-Hebei Border Area
SG Design NC5
SG NC13

Stamps 3 & 4
Central & South China
Central Plains Postal Administration
SG Design CC5

Stamp 3
SG CC28A

Stamp 4
SG CC27B

Fantastic! Thanks a lot. Should I catalog stamps 1 thru 5 as Liberation Areas?

Bravo Nigel.
That's twice I have been stumped this week,
these Chinese, and the Turkish Revenues you identified (and I have been collecting Turkey for 4 years)
Nice work.

Is anyone able to offer me Catalogue pages for the Gibbons or Scott that cover the North China and Central China stamps
shown above?

I have The Gibbons Commonwealth Specialists series and Gibbons Simplified Catalogues (7 catalogues in all)
and these are not shown at all
My North China type NC start at catalogue number 258
CC central China do not seem to be covered at all.

After researching these stamps, thanks to Nigel, I am even more confused on how to catalog them. It seems that both National Chinese forces and Communist forces formed an alliance at various places in order to expel the Japanese. But these alliances eventually broke down and the Nationalists and the Communists ended up fighting each other. "Liberation Areas" is obviously a simplification of the events. There is joint liberation and then civil war issues, besides the Japanese Occupation issues. Are there anti-Japanese and both Nationalist and Communist Civil War issues?

Rod

I can scan you the pages from the 1998 SG China catalogue. Send me a PM.

Geoff

Marvelous, Geoff.
Thank you very much indeed.

Thank you Geoff.

Identified Liaoning...............

invisible, he signs off.

The first 5 stamps are liberated area stamps of China (PRC, before 1949). The last one is 1940s China stamp (before 1949).