Hercules Speaker Stands
Model 12-910P ?
Chicago Speaker Stand
4701 West Armitage, Chicago IL, 60639 (ancient info)
I have 2 different pairs.
The short pair is: 12 3/8" High with 9"x10" top plate.
The tall pair is: 15 3/8" High with 9"x10" top plate.
I think that the legs can be filled with sand or lead shot.
Each pair comes assembled and includes a set of directions,
eight threaded cone points, and eight threaded foot spikes 3/8" tall.
Note that the screws holding the top plate stick up;
it was probably designed assuming that you would use the spikes.
One short stand weighs about 11.8 pounds,
One tall stand weighs about 12.6 pounds,
My scale is not accurate at these small weights.
A set of eight casters is $25 additional, only one set is available.
I weigh almost 200 lbs and have often used one stand to stand on
(without the casters); I have no idea how much weight they can support.
Most of the photos have been downsized, contact me if you need more detail.