朋友从废品收购站偶然拣得一封文革时期的信封,内装两件当时的公函,收信人均为西北大学革命委员会。一件是1967年11月北京市崇文区紫竹林小学寄出的“来京革命师生借款借粮催要通知单”;另一件是1969年7月西北民族学院革委会寄出并钤盖有西北大学革委会后勤组受理印章的“通知单”。这两件公函的时间相距约2年,但事由相同,皆为西北大学一位名叫符 Friends accidentally picked up from the waste collection station during the Cultural Revolution a envelope, containing two pieces of the then official letter, the recipient is Northwestern University Revolutionary Committee. One was sent by Zimulin Primary School in Chongwen District, Beijing in November 1967, “Notice of Borrowing Money by Learners for Borrowing Money from Beijing to Beijing” and the other was sent by the Revolutionary Committee of Northwestern Nationalities Institute in July 1969 And 钤 covered with the Northwest University Revolutionary Committee logistics group accepted the seal “notice ”. The two letters of the time apart from about 2 years, but the same thing, all of Northwestern University named