The neck doesn't stay up and maybe it wasn't suppose to. The conical pin holding it seems to have that play either as being too long or worn from age possibly needing a tap or two.
Now with that said, although I like those antlers; the color is good (hand painted) grass and shading but on the back side one conical pin has left it's residence so the pin clasp does move a little. This is the third one so far in searching so who knows how many are out there but thus far, it does seem a bit on the rare side to survive well with moving parts and pointy things :>. The item "Vintage Bakelite Hand Painted Articulated Swing Neck Giraffe Pin Brooch 1930's" is in sale since Friday, June 8, 2018. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Costume\Bakelite, Vintage Plastics\Pins, Brooches". The seller is "raysvintage" and is located in Paradise, Montana.
This item can be shipped to United States.