I've already made comment about my thoughts on the symbol in a separate post so won't go into that again here. However, Rufus, your comment about the old Squadron Shop in Elmhurst brings back memories. I grew up in Chicago. Throughout the 70s, I would make the trek from the southern suburbs up RT 83 to Elmhurst about every other weekend. I also remember that sign. The shop, if I remember correctly, was in the back row of shops but I could see that sign from the street, even before turning into the parking lot.
I had a lot of good times there looking at the walls of kits, talking to the guys behind the counter, and looking at the built-up models in the display cases. I even had a couple of my models on display there. One weekend, when I was on leave and visiting my mother's house in about 1981/82 or so, I took a drive up there after being gone a couple years. To my dismay, I couldn't see the sign from the street and, when I pulled into the parking lot and up to where the shop was, the horror was realized. There was a Barbizon in the old Squadron storefront. Aarghhh! ;~p