This is an empty Chinese remittance envelope dated to 1933, delivered from Singapore. It was delivered through qiaopi (侨批), a private mail delivery system established by early Chinese immigrants in the early 19th century to deliver money and family letters to their home villages in China. This envelope was stamped with Ampow and Penang chops. This indicated that the letter had passed through Penang and Ampow before reaching its destination at Swatow, China.