From the looks of it, you would probably never guess this was an Adam Davidson. To go a little off topic for a moment, my fellow copywriter Eric N. Squires actually made the same misconception some time ago, confessing to its maker that it "looked like a sausage". Apparently, before Adam could know how to take it, Eric clarified (as he is typically as nimble in backtracking as he is in wit and intellectual jousting) that he meant in relation to one of Magritte's more "euphemistic works"
. Well, Adam eventually came around to agreeing, and I have to say so do I, although I don't think it was his intention to be so obviously phallic (though it's my pseudo-scientific belief that every pipe, on some level, is an expression of virility).
Anyway, though this may not look like a Davidson to the untrained eye, there are certain little hints. For instance, the emphasis on simplicity, his tendency towards rather light, compact yet gracile designs, and the arching shanks, which seem to fluently dip and softly blend into the transition and bowl. Another characteristic of Davidson is the craftsmanship and attention to detail, which may not be a stylistically defining characteristic for any artisan, but always seems to be present in his work, even in the most unassuming "sausage" pipe.