This is a 1/144 scale Type-M Caquot observation balloon, as used by most combatants in World War One. To better match Shapeways' Oct 2014 pricing, the model has been split in two and can easily be assembled at the eight pins and holes along its edge. There is also a mounting guide-hole with reinforcement on the bottom fin. (The mounting hole is conical, so you can drill it out to the size you need. Frequently it works well without modification.)
This particular model does not include the ropes and basket. See below for a similar product that includes the basket and ropes.
One of a series:Caquot Balloons: 1/144 scale, with basket 1/144 scale, no basket 1/200 scale 1/288 scale
Parseval-Siegsfeld "Drachen" Balloons: 1/144 scale 1/200 scale 1/288 scale
Avorio-Prassone Balloons: 1/144 scale 1/288 scale