Interesting that on the backs there are a few different fronts printed for the PC, some upright and one upside down. On the below is the bar scene upside down and another unidentified front.
The Miller/Barbeau/Natress group its right side up.
If you take our sheet and overlay three front post cards they line up, you can see the red wine glass on the second Rudolph and the L from Lash on the bottom of the third card.
