An (AAP) concept for a small manned orbital station called, "RENOVATED COMMAND MODULE LABORATORY" or (RCML). Which is basically what the name says, it's the command module off the (CSM) & re purposed as manned orbital stations that could've been retrofitted for multiple types of missions.
The "Apollo 2 man Lunar Direct lander". It was one of many early concepts that were proposed to Nasa in the early 60s, before landing on the Mission profile we all know today. (This is just the 1st draft btw).