Welcome to tnet. Iron Patch nailed it. The basket weave pattern is a very early design, and was used well into the 19th century. Due to the backmark, I also place it in the date range Iron Patch did.
1st - I noticed this was your very first post - so, Welcome Aboard Jarod! You didn't list your state (or country) in your profile. So, you might consider jumping over to Sub-Forums: Select Your Area.... and selecting location information (i.e., clubs, hunts, finds, legends, maps, etc.) directly related to your state (or country). You might also consider adding your state (or country) to your displayed profile (SETTINGS -> EDIT PROFILE).
2nd - I moved from General Discussion over to Forum: What Is It? for more exposure.