近些年来,国内极限集邮界同仁对于那些利用邮政日戳“倒戳”、“假戳”、“仿戳”制造极限片的行为,不断予以揭露贬责,邮展查验把关,已引起人们警觉和抵制。而对于某些加盖纪念邮戳的极限片中存在的问题,则关注不够、研究不多。选用适当的纪念邮戳制作极限片,因其文字、图 In recent years, domestic limit Philatelic constituency colleagues continue to expose and derogate postal stamps, “stamps”, “false stamps”, “imitation stamps” Has caused people to be alert and resist. As for the problems in some of the ultimate films stamped with commemorative postmarks, they are not sufficiently concerned and have not studied much. Use the appropriate commemorative postmark production limit film, because of its text, map