Prospect Hill, VA. Headquarters of 13th New York Cavalry. July 1865. LOC # 04167 1) Is this a Sibley tent? 2) Is this a chair? 3) Is this a tarp covering a hole in the roof? (It looks like a horizontal piece of wood is just below the red number.) 4) An arm band? 5) What type of saddle is this? Was it common? Thanks.