Parseval-Siegsfeld "Drachen" observation balloon were used widely by Germany in World War I.
To accommodate Shapeways' Oct-14 pricing model, the 1:144 main body has been split in half, but it is easily joined using the built-in pegs and holes. (Smaller-scale models are one-piece and have no basket.) A conical, reinforced mounting hole is on the bottom fin so it can be used with a variety of stands. The 1:144 basket and ropes attach at mounting holes on each side with slight built-in tension to keep them in place. The basket and ropes can be removed for storage. The model is designed to "float" at a tilt with the tail side somewhat downward.
At sizes smaller than 1:144, no basket is included: it's simply a one-piece model. At 1:600 and 1:700, you get two balloons
, joined by sprues (which you'll have to remove carefully).
Related balloon models: Caquot Balloon
, Parseval-Siegsfeld "Drachen"