No postmark on this one, but I think it dates to the 1930s. Sheridan Restaurant & Cocktail lounge was located at 3944 N. Sheridan, under the L tracks, where "Sheridan L Liquors" is now.
Of course, a 1930s cocktail lounge image deserves another 1930s cocktail. This is also from the Savoy Cocktail Book book:
This will make you gyre and gimble in the wabe until brillig, all right, all right. (Green Fairy's Note: I have no idea what that means.)
2 dashes Orange Bitters
1/3 part Dry Gin
1/3 part Dry Sherry
1/3 part Caperitif (GF: A defunct mixer, but you can substitute with Lillet Blanc.)
Stir well and strain into cocktail glass. Squeeze lemon peel on top.