Lockheed SR-71s and M-21 with D-21 drone.
The aircraft in second picture set the New York to London record of 1hr 54min 56.4sec, on September 1st, 1974. It also set the Los Angeles to Washington, D.C. record of 1hr 4min 20sec and west to east coast in 1hr 7min 54sec.
It can be viewed at the Smithsonian Institution, Dulles International Airport, Washington, D.C.
In the third picture there’s the M-21 (a modified A-12) with the D-21 drone on top of it.
The Mach 3+ patch is upside down.