The block across from Block E was old, but robust and diverse:

All gone, replaced by the City Center bunker.

We'll provide a bigger version with close-ups and stories later this summer, with the enormous 1960 Survey Project. coming to a browser near you. For now, here's a detail that caught my eye:

 

Looks like a few letters had burned out. It's the BRO!

I have a matchbook from this place. I'd give anything for some photos of the interior.