Don't worry
n4
J*04K
I have hah it one month ago which buyed in the Postoffice
n4
J*04K
I guess these stamps should be selled in all of Postofficem in china
n4
J*04K
or look for it by youself in Hong Kong 'Postoffice
n4
J*04K
as far as you said if buy it in the internet
n4
J*04K
sorry I do not know you can try
n4
J*04K
good luck