八百里

嗯,買本目錄就清楚了, 老紀特早期無膠,中間就開始有膠
有膠的銷票,如果非二膠,就是蓋銷票,不是信銷

曾雷

欢迎新朋友！！建议买一本《中华人民共和国邮票目录》看看。

delicacy

CTO stands for "cancel to order", meaning these stamps are real(officially issued) and never used but were cancelled (postmarked) by post office for various reasons. Lots of these stamps were cancelled officially and exported to other countries in the past to gain foreign currency. Don't get it wrong.

CTO stamps may not necessarily be cheap