Thanks to my dad for this picture. (Yippee, Dad is helping expose the mistakes!) My initial problem with this sign is that the apostrophe is unnecessary. Without the ampersand-like thing, the apostrophe could be necessary if the business is named for someone with the name Posey. I think that the intention is to make the word plural. In my search for the proper spelling of the plural form of posey, I found that many online dictionaries-- I consulted several-- do not list posey as a valid word. Dictionary.com says that "posey" means expensive and fashionable, esp. with the intention to impress; pretentious. (The nature of this sign makes me doubt this definition applies.) But, maybe that is what is intended here. The word "posy" is listed. It means, according to Webster's, a bouquet, nosegay, or flower. Initially, this is what I thought the business sign was implying. The plural form of "posy" is "posies." Enough is enough... the apostrophe is almost surely wrong. As for the rest... you decide.