I think this sign originally advertised Digital Prints in MINUTES rather than in NUTS.
Another big breakthrough! No need for film, even with its come-hither one-hour promises. Just bring in your memory card and within minutes you can gaze at your print-outs.
I wonder if the space for the number on the sign was designed so they could gradually bring down the number of minutes it required. Perhaps it started at 15, or 10, and they gradually sliced it down…
Sadly, that miracle didn’t stop the digital-print establishment to which it belongs closing down. Now you will never get your digital prints.