笔者集邮多年, 除收集邮票外,更喜欢收集新邮票首日实寄封。由集邮公司发行的首日封,大多采用将全套邮票(不论枚数和面值)贴在一个或几个信封上,因此邮资一般都要超出正常使用标准,实寄时多数要按超重或挂号信处理,往往还要补贴邮票,以使其符合邮资标准,这是长期以来一直让集邮者烦脑而又很无奈的问题。笔者 I collect stamps for many years, in addition to collecting stamps, preferring to collect the first stamp of the new stamp. The first day cover issued by the philatelic company mostly adopts the method of attaching a full set of stamps (regardless of the number of ceilings and the par value) to one or more envelopes. Therefore, the postage should generally exceed the standard for normal use. Most of the postage should be handled as overweight or registered letters, often Stamps have to be subsidized to meet the postage standards, a problem that has long been a problem for the philatelists to bother with their brain. author