Here are two wooden acoustic suspension speakers by speaker company, Centuri. These are approx 11" x 9" x 18". Speakers are in good, vintage condition with some wearing on the wood. Speakers do not come with cables and have not been tested.

The acoustic suspension (air suspension or sealed box) is a method of loudspeaker cabinet design and utilization that uses one or more loudspeaker drivers mounted in a sealed box or cabinet. Acoustic suspension systems reduce bass distortion that can be caused by stiff motor suspensions in conventional loudspeakers. The acoustic suspension was invented in 1954 by Edgar Villchur, and brought to commercial production by Villchur and Henry Kloss with the founding of Acoustic Research in Cambridge, Massachusetts. Speaker cabinets with acoustic suspension can provide a well-controlled bass response, especially in comparison with an equivalently-sized speaker enclosure that has a bass reflex port or vent.