PA-KAU CANCELS ON CIP COVERS

Like the Dollarchops, some Pa-kau cancels were used until the Republics. But Pa-kau are not as commonly used during the CIP period and with a few exceptions like Shanghai, Chinkiang and Tientsin.
The following are examples of Pa-Kau covers used during the CIP period.

1 = SOLID LINE, 2 = SPLIT LINE (RED = Never been used)
TOWN NAME	PA-KAU	TOWN NAME	PA-KAU
Peking	111 111	Newchwang	222 222
Tientsin	212 221	Taku	122 212
Chefoo	212 111	Chungking	111 212
Ichang	222 212	Shasi	212 222
Hankow	112 111	Kiukiang	111 211
Wuhu	222 111	Nanking	111 222
Chinkiang	111 121	Shanghai	121 111
Woosung	222 122	Soochow	221 222
Ningpo	211 221	Hangchow	122 112
Wenchow	222 211	Foochow	112 222
Pagoda	121 221	Amoy	122 121
Swatow	122 222	Canton	222 221
Kiungchow	111 221	Pakhoi	122 111
Lungchow	122 221	Mengtsz	211 112
Szemao	212 212	Hokow	121 121

FOOCHOW PA-KAU

RED BAND COVER SEND FROM FOOCHOW TO SINGAPORE

A red band cover send to Singapore franked with a 10c. CIP stamp canceled by a Foochow Pa-Kau (112 222) and a Foochow bilingual cancel of 30 DEC 01 alongside.
A vertical 5c. pair of the British Post Office stamps franked the back of the cover canceled by both a 'IPO tieprint' of Foochow and Hong Kong cancels. Singapore receiving of JA 9 1902.

CHINKIANG PA-KAU

COVER SEND FROM CHINKIANG TO USA

A Chinkiang cover franked by a strip of 5, 2 cents CIP stamps was canceled by 3 strokes of the Chinkiang Pa-Kau (111 121) on the back of the cover.
On the front of the cover is a Chinkiang Bilingual cancel of 6 FEB 01 and a 10 sen Japanese stamp canceled by a Shanghai IJPO cancel of 9 FEB 01.
Shanghai Bilingual transit and Peoria receiving also to the back of the cover.

SHANGHAI PA-KAU

COVER USED LOCALLY IN SHANGHAI

A cover send locally in Shanghai with the special 1/2c. rate only for local mail for Shanghai and the stamp canceled by a Shanghai Pa-Kau (121 111).
The Shanghai Pa-kau is a mirror image as the above Chinkiang Pa-kau, but the last solid line of the 111 is thick whereas the line in the Chinkiang Pa-Kau is thin. These features of thick and thin lines and the wide and narrow gaps between these lines is a good tools for separating the towns with mirror image even on single stamp as long as there is a full cancel.