The first photograph taken by an earthling, Neil Armstrong, on - and of - the moon, just after landing. With a RCS thruster in the foreground, the view is to the left/south through his window.
Above paraphrased from the ALSJ, in addition to the following, adding context to its historic significance, despite it ‘merely’ being a contingency checklist procedure:
"...frames (5449-5453) were taken out Neil's window just after they completed the post-landing platform alignment, as per Sur-5 in the LM Lunar Surface Checklist,
www.hq.nasa.gov/alsj/a11/a11sur.pdf
at about 103:59:47. These pictures - together with a sequence that follows, taken by Buzz - form a contingency panorama in order to briefly document the site and its immediately interesting features, so that the crew wouldn't have left [empty-handed] in case of a NO STAY decision. Note that, as with all the frames on this magazine, they were taken with the magazine on the IVA camera and have no Reseau crosses."