This appears to be an Chinese (ROC) military field post stamp (SG M754 from 1945) overprinted for use in the North-Eastern Provinces (SG M12 or M13 of 1946-48 depending on the length of the overprint).
Hello Nigelc,
Thank you so much for your response. I checked the overprint with my m.m. gauge. It is 15 1/2 m.m. Have a great day. Paul Wilson. (OLDPAUL).
This appears to be an Chinese (ROC) military field post stamp (SG M754 from 1945) overprinted for use in the North-Eastern Provinces (SG M12 or M13 of 1946-48 depending on the length of the overprint).
Hello Nigelc,
Thank you so much for your response. I checked the overprint with my m.m. gauge. It is 15 1/2 m.m. Have a great day. Paul Wilson. (OLDPAUL).