This from Eric Haak:
Here are some more images from the 5-11 +1 special at 3610-3620 South Iron Street. The fire was in the old Central Bag Manufacturing Company building which was being used at the time by the Purofied Down Products Company as a pillow factory. The fire occurred on April 4, 1964 with an initial still time of 11:00 am. The first image is a little closer look at the image I shared last week. I was wondering if anyone knew why the two firefighters on the roof of the 1-story were holding their arms up? Was that some type of signal used by the fellas back in those days? Thanks and enjoy.