Recent sales at Charing Cross Collectors’ Market in June included a 1948 Hong Kong $100 note which was issued by HSBC and sold for £250 (top left in this picture).

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Pettecrew, who said “like Platform 9¾, the market is hidden away from the crowds”, inherited its running from her father Rodney Bolwell who founded the early morning market in the 1970s.

The core business of this weekly Saturday event, which runs from 7am-3pm, where traders buy as well as sell, has always been stamps, coins, banknotes and ephemera but into the mix now are militaria items.

The blog on the market’s website is an interesting read on collecting.