一1927年6月1日深夜。奉军总司令张作霖在其位于北京西城太平桥大街路西原清朝顺承郡王府的大帅府里,秘密向住在天津的奉军将领李明盟写了一封密札。张作霖亲自动手把那封两张纸的信件装进了一个牛皮纸信封,细细封好,又在信封两头封了火漆,其保密规格无异于军队的一份最高等级的作 One late at night on June 1, 1927. Chang Tso-lin commander-in-chief Commander Chang Tso-lin wrote a secret book to his commander in chief Li Mingmeng, who lives in Tianjin, at the marshal of Shuncheng County, the capital of the Western Yuan Dynasty in Taipingqiao Street, in the western city of Beijing. Zhang Zuolin personally put two pieces of paper sealed letters into a kraft envelope, carefully sealed, and sealed in the envelope on both ends of the fire, its confidentiality specifications are tantamount to a military order for the highest level