Early 1900's postcard - British bobby on the Shanghai bund A Hong Kong Police detective badge sold last month on eBay for £3,913.75. The King’s crown, gilt metal, blue enamel badge bears the Chinese characters for investigator and GR Royal cypher dating it to between 1910 and 1952. There are no lugs at the back so it was probably carried as a shield in a wallet instead of worn on a cap. The only...

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