_MG_3937
Warped nitrocellulose negative aka Rocket Fuel, very flammable and unstable
Market Street San Francisco Bay bridge construction
_MG_3936
_MG_3935
_MG_3934
_MG_3933
_MG_3932
_MG_3931
_MG_3930
_MG_3929
_MG_3928
_MG_3927
_MG_3926
_MG_3925
_MG_3924
_MG_3923
_MG_3922
_MG_3917
_MG_3916
_MG_3915
_MG_3013
_MG_3681
_MG_3501
_MG_3696
