Descriptive InformationFire fighting School, July, 1960, -Test of protection for Building #48, 3.5x3.5 Negative Filed. Original caption: NHF 12, Harper House Porch from Stone Steps before Porch Removal, Jan 1955. NHF-1466, Fire Fighting School, July 1960, Test of Protection for Bldg 48, 3 1/2 x 3 1/2 Negative Filed.