maozhang.net
Cargo ships occasionally appeared on Maozhang, underlining the importance of sea trade to a near-isolated nation (cf the revolutionary model opera On the Dock); however it was warships that took pride of place. Some of the badges commemorated past events, such as Mao's speech in February 1953 calling for a strong navy, while others referenced contemporary events.
45mm 10.2g
h. 34mm w. 31mm 3.1g
54mm 10.7g
44mm 7.9g
h. 36mm w. 34mm 3.8g