Kleeware novelty whistle, I suspect it is actually from a US design, a lot
of Commonwealth's novelties had a 2nd life over here, and the locomotive while
possibly needing to be that long for the purpose of getting the note out
(doubtful; there are whistles in all sizes) is more of a US type 'iron horse'
with the cow-catcher (they didn't catch them, they momentarily eviscerated them
and exploded them out of the way!) and the enclosed engine-driver's
cab?
A 0-6-4 is an odd configuration too, but it
is primarily a novelty whistle! I love this stuff; it's ephemeral but it
survives! The blue one is a stable polystyrene, but the green one (presumably an earlier batch) is a less stable phenolic resin or celluloid-type plastic.
