|that pesky number|
owl imagery and death
The second image is an owl poster, or embroidered wall hanging, in Sally's room (seen at about 4:50). During this scene Sally is talking about the death of a friend's mother (owls and death as a mythic theme). Also in the frame is a troll (symbolic of an alien), some peace signs (symbolic of, well, peace), multiple butterflies (symbolic of death and re-birth) and Charlie Brown and Linus (symbolic of existential dialog).
So, what I can safely conclude is that the script writers of this show have been scouring my blog for inspiration.
Here is another curious MAD MEN post, involving my own impressions and then a follow-up confirmation, all having to do with UFOs. (linked HERE)