Carburetor dash pot bracket, this is the smaller bracket and was likely used during the 1968 Model year. Unknown when exactly. Fits all Autolite 2100 and 4300 carburetors if needed 1968-70 Mercury Cougar and Ford and Mustang. Some of these have a trace of Gold color on them like other carburetor parts. Small hole for attaching to left front of the carburetors, before anyone asks, we do not have the fasteners for these. Larger hole is threaded for factory installed dashpot which is 5/16-24. Some, or most carburetors likely had these from the factory, with automatic transmissions.
Definition of the 'Dash Pot' or 'Dashpot': mechanical device which dampens or slows down the throttle plates as they close to the idle position. Not to be confused with the Solenoid which was used with air conditioning among other things.
Ford part number C8AZ-9B550-B.