"Window cranks" refer to the device used to manually open and close windows in a car. It is a handle or lever that you turn to operate the window mechanism. Full definition
If the windows are manual, the crank handle has to come off (see Broken window crank handle). (mechanics.stackexchange.com)
The greenhouse window cranks, coal furnace ash receptacle, a large garden pedestal that once supported a sun dial and the giant granite ball from the main entranceway have all been salvaged and may be displayed on the grounds. (btiscience.org)
Billet door handles, Billet vent window cranks, power windows, saddle head liner and sun visors. (classiccars.com)