This from Eric Haak:
Below are images taken at a 5-11 +1 Special on October 10, 1971. This fire broke out at 11:15 am @ 430 N. Damen. It looks like a structure along with some kind of a yard like pallets or lumber. The rig you see in the final image is Engine 14. Thanks and enjoy!

From the collection of Eric Haak, photographer unknown

From the collection of Eric Haak, photographer unknown

From the collection of Eric Haak, photographer unknown

From the collection of Eric Haak, photographer unknown

From the collection of Eric Haak, photographer unknown

From the collection of Eric Haak, photographer unknown
#1 by John on October 26, 2017 - 8:14 PM
Looks like Big John was there
#2 by mike mc on October 26, 2017 - 1:19 PM
Thanks for posting. Nice shots of snorkel 4. Wasn’t there a 3-11in that same lumber yard a couple of years ago? It was filled with large pallets, apparently just like the 1971 fire.