This Bullard Hard Boiled Construction Hat is in Very Good Condition. The exterior is in nice shape with some minor scuffs and dings but nothing very serious. The liner is dirty from years of use but looks to be complete and functional. It could probably be cleaned up but I just didn't do that. I don't see the number 502 anywhere on the helmet but I think that is the model number by looking at all the other listings. The size listed on the tag inside says it can be adjusted from 6 1/2 t...o 7 5/8. I wear a mens large and it fits on my head nicely. Thanks for looking. I sold this Bullard hat twice on auction. The first time it went for $365 and the second time it went for $390. The bidders never paid so I am listing it on a buy it now at a price in the middle.