“What manner o’ thing is your crocodile?”: July edition

Okay, folks, it’s time for another crocodile mystery. It’s pretty obvious, I think, what genre of thing this is (though do go ahead and identify it anyway), so let’s take this to the next level: what specifics can you supply about this particular example?

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Don’t forget that, as always, if you click on the image a larger version will open up in a new window; clicking on that image should enlarge it further, if need be.

Looking forward to your answers—and maybe even learning something from them!