They serve typical, traditional American breakfast cuisine. They are excellent at what they do. The small restaurant is usually packed because everyone loves them. They make your order for you, your way. Part of their charm is that they are "old school," so no, I don't think they would have much of an online presence or menu.
A few of the pictures has the menu
Looks like there are some pics and info on their Facebook page.
I am not sure
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