A monochrome real photographic postcard showing a view of the aftermath of the ammonium nitrate explosion on the French ship Grandgamp on 16 April 1947 which destroyed much of Texas City and killed a total of 581 people, still considered to be the worst industrial accident in US history. The card was published by L.L. Cook Co of Milwaukee, No M525. #TexasCity #Disasters #Explosions #LLCookCo #Postcards