Fotomat was a chain of drive-up film developing kiosks. You would drop off your negatives, and pick up pictures the next day. They were eventually overtaken by one hour photo labs in the 1980s and went out of business. Some of the structures have been repurposed to sell coffee or other products, but most are gone.
Here is an undated photo of one. Maybe late 60s / early-mid 70s, from the cars?



At the bottom of the bold text. Trademark, you see 1977 in the ad.
That’s certainly the ballpark, although that date in the ad appears to be when the “picture pickup promise” phrase was trademarked, which could possibly be years before the ad. But at least the ad must be 77 or later.
I’m always a little cautious about using trademark dates since I’ve seen cases where a trademark or copyright date predates the ad itself by decades.
Understandable, but I would think “Introducing” in the ad copy would constrain it pretty closely to the trademark year.
I’m sort of agreeing that this might be closer to a 1973 timeline because of the Camaro R2 or potentially AMC Javelin in the illustration, however it could just be some graphic design of both/similar vehicles… mid to late 1970s seems close enough.