As you’ll recall from this post, we’ve already featured the misuse of the apostrophe in the Zip’s slogan Since 53′. Sierra points out that they use the correct form on their takeout bags:
My husband and I just moved back to the Tri-Cities WA, where he grew up. He couldn’t wait to take me to Zip’s, apparently a local fast food institution. The first thing I noticed after getting our food was the Since 53′ on the drink cup. Then I looked at the bag of food and realized they put Since ’53 on that. I guess if you’re not sure, you try a couple different ways and hope one is right??