Massive Pearl is a trading item in 80 Days which is acquired via conversation choices while travelling on the Artificer's Coppership between Antananarivo and Colombo.

Should you have this in your possession when you return to the Reform Club, the butler might put it over the mantle (unless he likes something else better)

Seed Buy in Sell in £
1 Artificer's Coppership Rangoon 6900
3 Artificer's Coppership Canton 8100
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