What are these? Socket like parts are brass and two brass rings of

Brass Metal: Types of Brass Metal, Types of Brass Metal, Applications and Advantages

Antique Skeleton Key Set

Unknown tool identification - Anyone know what these are? : r/watchmaking

Center post is a screw that moves up and down and pushes a flat plate down. Center plate is removable and not physically connected to screw. No markings. Cast metal. : r/whatisthisthing

Brass - Wikipedia

Brass Plug Pin & Sockets

747, Recessed Stopper Plug

Metal detecting find. Body is made of brass or bronze metal, has screws holding small wire or rod (wire is .054” thick or roughly 16 gauge). Object appears incomplete and missing much

What are these? Socket like parts are brass and two brass rings of different sizes, wrench looking part is steel. But the brass sockets don't seem to fit the wrench part.

Fits 1-3/8in Hole / Ring Diameter: 1-3/4in Grounded 1/8ips. Female Threaded Cap. Rated 250W 250V. UL Listed E-224663, Documentation, UL

Antique Brass Uno Threaded Single Turn Square Key Socket Includes Knurled and Smooth Shade Ring

Metal Ring for SO20080-C Lamp Socket

Parts List: Everything You Need to Make Your Own Pendant Lights - Snake Head Vintage

Unknown tool identification - Anyone know what these are? : r/watchmaking

Brass Metal: Types of Brass Metal, Types of Brass Metal, Applications and Advantages