hi, I have a question for someone who knows this subject well.
i have this stamp in my family album,it's from 1948-1949 I think,and I searched in this catalog:
http://values.hobbizine.com/chinast...29-1935.htmlbut I could not find a "300 on 3000" mark,so maybe it's rare,or just not exist in this catalog? whould like to know from someone who knows better.
thanks for any help.
