中国邮政局国际互换局内部邮戳
International postmarks which internal used by China Post International Mail Exchanging Bureau:
http://blog.sina.com.cn/s/blog_95d640e901011hjz.html

That's sort of neat! Interesting cancels on a really neat stamp. I have some of these types of cancels too but know nothing about them. Do you know more on these? maybe Ill post them?

I always wonder why earlier China Postmarks on covers brought a premium. I notice them on ebay, with some of them fetching over $100. Any thoughts???

my only thought is if I own one! I noticed a trend of that sort of thing lately kacyds. It would seem a lot of the far east stuff is skyrocketing lately. Not sure what or why though?