The "American" pattern was and still is the most popular glassware pattern Fostoria Glass Co ever produced. In fact it probably is the most recognizable of any glassware patterns. This is the 9-1/2" Dinner Plate. It has the large starburst center.
This plate most certainly has been used, but I do not find any damage, scars or marks. I have four of these plates for sale and you may find a utensil mark or two, but they will be very hard to find as I don't see any! These sell for $35.99 each on a china replacement site.
Please e-mail if you have any questions.