Gents,
Thanks very much for the quick reply.
Funnily enough I'd recently written about the Middlesex Regiment's arrival in Hong Kong in 1917, as we have a photo of them from that time with a cap 'badge' I'm pretty sure hasn't been seen here before:
http://gwulo.com/node/9084
But I couldn't see the badge's wreath in the 1918 photo (and had also got too attached to the idea the 1918 photo showed an anchor), so decided it couldn't be a Middlesex badge. After reading your comments and looking again, I see that the 1918 photo just shows the silver parts of the badge clearly, and the bronze parts are lost in the gloom.
Thanks for setting me straight,
David
PS Griff, the word you're thinking of sounds something like 'gwailo'. 'Gwulo' is much more harmless, and just means 'old'.