These stamps show the following: Private and personal Nil carborundum illegitim Please receipt and return (2 stamps) Please file in Confidential Draft Copy Urgent Printed papers reduced rate Important Chinese Science Research Account Printed matter rate Tentative and provisional Please return for filing Air mail Par avion 3 stamps with Chinese characters a) te 特 [special] b) suda 速達 [express] c) youyihui qian 友誼會箋 [friendship association document]. All these stamps were found in a box previously holding Restora Cheroots and inscribed by Joseph Needham ‘finished cheques CSRA’.