Yes, a picture might help determine the helmet style to start with and if you could put up some measurements that I could compare to one of mine, I might be able to make a comparison. I do have over 20 helmets and additional blank shells in my collection to measure against for a possible match. Also, check thoroughly inside the helmet, under the foam liner or under the visor cover if there is one, there might be a size or serial number sticker to go by as well. They put those stickers in the weirdest places sometimes.