Gene-- just an FYI-- It makes no difference to a prospective buyer, as to what other signs look like, or what they brought. You are selling to a fairly well educated group of collectors here on Old Gas, and they will want to see the product with their own eyes before they will show any interest. A picture is absolutely necessary in order to get buyers interested.
If you don't know how to post pictures of your sign, please go to the "Shop Talk Forum Help" section. There are several excellent tutorials on there that are designed to help first timers with photo placement.
Hope this helps, and good luck with the sale of your sign.