This is a Vintage Niles OS-10 Indoor/Outdoor Speaker with 5.25 inch woofer and 1" tweeter running between 10 to 100 watts and 8 ohm. It is 11 inches tall, 8-3/8" wide and 7-9/16 inches deep weighing 6.5 pounds. It has a detachbale mounting bracket that allows for 3-way mounting.
This speaker has considerable exterior wear as it was used in a workshop for years but it still works great without any sound issues as it has military grade corrosion protection so interior has not been impacted. Mounting bracket still holds.
Specs:
The Niles OS-10 indoor/outdoor speaker weighs 6.5 pounds (approximately 6 lbs 6 oz) per speaker, including the mounting bracket. These speakers feature a 5-1/4" woofer, 1" tweeter, and are designed for durability against extreme temperatures and weather conditions.
Key Specs for Niles OS-10:
Weight: 6.5 lbs (2.95 kg) per speaker.
Dimensions (with bracket): 11" High x 8-3/8" Wide x 7-9/16" Deep.