Can you identify this old building or business? ?

It's been two years since I last posted this (and got nothing.) So I thought I'd try it again.  

I have a collection of advertising mugs with special 'magic ink' where the ink turns clear to change the design when hot liquid is put into the mug. This is one of them, shown with the ink clear. I have a website (blog style, noted on the photo)  for no other reason than to showcase the collection and demonstrate the ink properties. The problem is that this mug has no identification as to the company or location or anything.  All it says is "Magic of the Holidays 1992"  BUT it does show the building.  I know the building is in the brutalist design , and I can only assume it is a business as to the fact that they put out this mug for their employees or clients.  As you can see, there is nothing else to go by.  I obtained the mug many years ago out west - maybe Colorado?, in a thrift store, which is where I get so many of these mugs.I know this is a long shot, asking for help in identifying a building or company from 1992 with nothing to go by but this 'drawing' but I'm hoping someone somewhere will recognize the building and perhaps that will lead me to the company.  Can you identify it for me?