Perfectly Awkward and Rather Dainty Erotic Folk Art Mechanical Toy

Feels rather timely, but let's remember, women have teeth:) Considered on its own terms, this is just about my favorite erotic folk art toy I've seen, of a very diminutive scale, with carefully incised detailing for hair and faces on both figures, such that it feels dainty and delicate even while rather graphic--and with a quite dramatic range of motion to our thrusting fellow! A piece of trench art I might guess, which fits in the smallest pocket, or wallet, for easy carrying--and concealing. 

When he's standing, 2 3/8" t x 2" l. Very good condition, with some bleed/rusting from the iron pins at the joints. Operates smoothly though a combination of pulling the handle and pushing his head.