The Apollo 4 Command Module is a Block I vehicle with Block II details, such as the EVA handles and the Block II CSM umbilical connection. It flew on the first Saturn V flight as part of the "all-up" test on November 9, 1967.
Located at: Stennis Space Center Visitor Center
Image by: Jim Gerard
Rarely recovered, the Apollo 4 nose cap was retrieved by recovery ship after the flight. Image from Garber Restoration Facility. May have moved to Udvar-Hazy Facility.