Apollo 4 (AS-501) was the first flight of the Saturn V Launch Vehicle. It was an unmanned test flight. It carried a Block I version of the Command Module CSM-017.
Text below was taken from the NASA description of the flight
"The unmanned Saturn/Apollo 4 (AS-501) mission was the first all-up test of the three stage Saturn V rocket. It carried a payload of an Apollo Command and Service Module (CSM) into Earth orbit. The mission was designed to test all aspects of the Saturn V launch vehicle and also returned pictures of Earth taken by the automatic Command Module apogee camera from about one hour before to one hour after apogee. Mission objectives included testing of structural integrity, compatibility of launch vehicle and spacecraft, heat shield and thermal seal integrity, overall reentry operations, launch loads and dynamic characteristics, stage separation, launch vehicle subsystems, the emergency detection system, and mission support facilities and operations. The mission was deemed a successful test."
The countdown demonstration test was a long drawn out affair and was beset with problems. It started late September 1967 and concluded nearly three weeks later on the 13th October.
Here are a set of 6 images of the control panels in the command module showing the switch positions.
On the back of the photographs the date shown is 10-10-67, with the prefix UNCL. The prefix may mean "Unclassified", and may indicate that the photos were taken at the start of the test, prior to the hatch being closed.
The countdown demonstration test was a long drawn out affair the was beset with problems and took 3 weeks to complete. It started in the end of set of six photos showing the switch positions of the command module prior to launch