Apollo Lunar Module Test Article no. 1 (LTA-1) at the Cradle of Aviation Museum.
Note: the round egress hatch opening. This was changed on the product version to the familiar square hatch.
Date: March 5, 2023
Photograph by Mike Peel: link
seen from China
seen from United Kingdom
seen from United States
seen from United States

seen from Germany
seen from Iraq
seen from China
seen from Canada
seen from China
seen from United States
seen from United States
seen from Saudi Arabia
seen from United States
seen from United States
seen from Germany

seen from United States

seen from United States

seen from United States
seen from United Kingdom
seen from United States
Apollo Lunar Module Test Article no. 1 (LTA-1) at the Cradle of Aviation Museum.
Note: the round egress hatch opening. This was changed on the product version to the familiar square hatch.
Date: March 5, 2023
Photograph by Mike Peel: link
The Apollo Lunar Test Article (LTA-8) under construction at Grumman's facility in Bethpage, Long Island, New York.
Date: March 14, 1967
NASA ID: S67-27042
Grumman Aerospace Company Photo: LPS-250-214
source
Early concept art of the Apollo Command and Service Module docked with the front port of the Ascend stage of the Lunar Module.
"Originally the LM was to have two docking ports, at the top and front. But during development it was decided to change the front port to a hatch only, saving weight but making docking very uncomfortable for the crew."
-information from Astronautix: link
Photo of an early probe and drogue docking simulator/demonstrator at North American Aviation.
This was still evident with the early Lunar Test Articles, as seen here on LTA-1/11.
"Project Apollo: Mission to the Moon" by Charles Coombs, Scholastic Books, Inc., 1965
Posted on Flickr by Numbers Station: link
Smithsonian Institute: A19740648000
NASA ID: 64304, link
NAA publicity photo: 7005-04-196 C