This is a repost from my puzzle blog. (Link in my profile.)

My great uncle from Atlanta died last month, and my family drove there to attend the funeral and prepare his house for an estate sale.

When I was cleaning his office, I found a strange note. I’ve stared at it for hours, and I just can’t figure out what it means. Maybe you can help. I am attaching a copy at actual size.

The note wasn’t the only strange thing in his office. Every square inch was filled with Coca Cola memorabilia — posters, newspaper ads, toys, and unopened bottles. By far his largest collection was of 12 oz. Coke cans from different eras. There must have been hundreds! And apparently when he wrote the note, he was thirsty. On the desk beside the note was an empty Coke can, the only empty can in the room.

Other than the Coke memorabilia, the room looked like a typical office. On his desk were pencils, a spiral notebook, a cloth tape measure, Scotch tape, and a pair of scissors, though I doubt most of this has anything to do with the note.

Maybe it’s all just gibberish, or maybe there’s more than meets the eye. Can you help me solve the mystery?

Hint:

I get the sense that the first step is printing out a physical copy of the note at actual size. I added the "1 inch" marker, so you can be sure it is scaled correctly when printed. That is the marker's sole purpose.

Hint 2:

See the white squares at the bottom? I get the sense that you use these to fill in a 5-letter keyword, which serves as a way to reorder something. There are some numbers in the image, and I feel like these, in conjunction with the Coke clues, may help you find that keyword.

Notes on sizing:

For those without access to a 12 oz. U.S. soda can, its diameter is 65.75mm or 2.588 inches. For the 1 inch scale, 1 inch equals 25.4 mm.