Spelling error
The aim of proofreading is to catch surface mistakes in spelling, punctuation, formatting, etc. -- such as on the restaurant sign above, where the writer misspelled "omelette" as "omelate."
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"All sizes | Omelate | Flickr - Photo Sharing!."
http://www.flickr.com/photos/smudie/44633735/sizes/z/in/photostream/
Flickr
CC BY-SA.