Once the roster is out and you know what your company designation is, feel free to order some hat brass!  Rather than the large issue letters intended for Dress Hats and sometimes seen used on caps, will will be offering participants copies of the small commerical brass letters soldiers bought from sutlers, and seen in photos of members of the 2nd Maryland in 1862.  You certainly don't need to have any, but if you want to buy a letter, pick it up at check in, and attach it to the front of your cap before we step off, have at it!