I have a very nice black Bender Tri-Corner hat for sale that was made for the 2nd Mississippi for the 150th Manassas event. I believe Tim said the hat was based off of the hat worn in the Thomas Gooch image. The hat was worn only once for a very short time. Size is 7 3/8 or 23 1/4 inches. I don't have pictures at present, but I believe everyone knows Benders reputation for quality hats.
Asking $110 plus shipping to your location. Please PM me here on the forum if interested.