Unidentified photographer, 1945, 14 July, New Mexico, at the Alamogordo Test Range, first ever nuclear explosion, 9.75 x 8 ins (250 x 200 mm), Private collection of Brad Feuerhelm, LL/34032

Unidentified photographer, 1945, 16 July, New Mexico, at the Alamogordo Test Range, first ever nuclear explosion, 9.75 x 8 ins (250 x 200 mm), Private collection of Brad Feuerhelm, LL/34033

Unidentified photographer, 1945, 16 July, New Mexico, at the Alamogordo Test Range, first ever nuclear explosion, 9.75 x 8 ins (250 x 200 mm), Private collection of Brad Feuerhelm, LL/34034

Unidentified photographer, 1945, 16 July, First atomic bomb, 10 x 8 ins (200 x 250 mm), Private collection of Brad Feuerhelm, LL/33999

Unidentified photographer, n.d., Destruction of a test house (1 of 4), Private collection of Brad Feuerhelm, LL/34006

Unidentified photographer, n.d., Destruction of a test house (2 of 4), Private collection of Brad Feuerhelm, LL/34007

Unidentified photographer, n.d., Destruction of a test house (3 of 4), Private collection of Brad Feuerhelm, LL/34008

Unidentified photographer, n.d., Destruction of a test house (4 of 4), Private collection of Brad Feuerhelm, LL/34009

Unidentified photographer, 1953, 18 April, Pre-dawn atomic light, 10 x 8 ins (200 x 250 mm), Private collection of Brad Feuerhelm, LL/34001

Unidentified photographer, 1965, Fat Man - Atom bomb, 9.5 x 6.5 ins (245 x 165 mm), Private collection of Brad Feuerhelm, LL/34022

Unidentified photographer, 1945, August, View of Hiroshima city before the bombing, 10 x 10 ins (255 x 255 mm), Private collection of Brad Feuerhelm, LL/34024

Unidentified photographer, 1945, August, View of Hiroshima city after the bombing, 10 x 10 ins (255 x 255 mm), Private collection of Brad Feuerhelm, LL/34023

Unidentified photographer, n.d., A terrible sight by atomic bomb at Hiroshima, Private collection of Brad Feuerhelm, LL/34002

Unidentified photographer, 1945, 13 September, Hiroshima, Path cleared of debris after attack, 10 x 8 ins (200 x 250 mm), Private collection of Brad Feuerhelm, LL/34000

Unidentified photographer, 1946, 25 July, This Bikini Atoll shot shows the fourth atomic bomb being exploded midst a fleet of 73 ships during tests on July 25th, 1946., 9 x 7 ins (230 x 180 mm), Private collection of Brad Feuerhelm, LL/34012

Unidentified photographer, 1951, An atomic explosion, reputedly detonated under-ground, raises a deadly cloud cuased by this explosion was of an entirely different shape that the clouds of previous atomic explosions., 9 x 7 ins (230 x 180 mm), Private collection of Brad Feuerhelm, LL/34013

Unidentified photographer, 1957, 18 August, Atomic detonation "Shasta", 9 x 7 ins (230 x 180 mm), Private collection of Brad Feuerhelm, LL/34014

Unidentified photographer, 1954, 1 March, Hydrogen bomb testing, 10.5 x 9.75 ins (265 x 250 mm), Private collection of Brad Feuerhelm, LL/34018

Unidentified photographer, 1954, 1 March, Hydrogen bomb testing, 11.25 x 11 ins (280 x 285 mm), Private collection of Brad Feuerhelm, LL/34020

Unidentified photographer, n.d., Atomic / Hydrogen bomb, Private collection of Brad Feuerhelm, LL/34021

Unidentified photographer, 1959, Hydrogen or Atomic bomb explosion, 7.5 x 6.5 ins (185 x 165 mm), Private collection of Brad Feuerhelm, LL/34026

Unidentified photographer, 1948, Atom bomb test, 8.5 x 7.5 ins (210 x 185 mm), Private collection of Brad Feuerhelm, LL/34027

Unidentified photographer, 1946, 1 July, Atom bomb test, 8 x 10 ins (205 x 250 mm), Private collection of Brad Feuerhelm, LL/34028

Unidentified photographer, 1953, Hydrogen or Atomic bomb explosion, 9 x 7 ins (230 x 175 mm), Private collection of Brad Feuerhelm, LL/34029

Unidentified photographer, 1953, Atomic explosion at Yucca Flat, Nevada, 9.25 x 7 ins (230 x 180 mm), Private collection of Brad Feuerhelm, LL/34030

Unidentified photographer, 1953, Atomic cloud, 8 x 9.5 ins (185x250 mm), Private collection of Brad Feuerhelm, LL/34010

Unidentified photographer, 1946, Atomic Energy tests in the Pacific, Bikini Atoll, 7 x 9 ins (175 x 225 mm), Private collection of Brad Feuerhelm, LL/34003

Unidentified photographer, 1946, 25 July, Viewed from the air, subsurface blast presented turbulent cloud seconds after breakthrough., 8 x 10 in (205 x 255 mm), Private collection of Brad Feuerhelm, LL/34017

Unidentified photographer, n.d., Atom bomb explosion, 25 x 25 cm, Private collection of Brad Feuerhelm, LL/33995

Unidentified photographer, 1946, Bikini Atoll, 10 x 8 ins (200 x 250 mm), Private collection of Brad Feuerhelm, LL/33993

Unidentified photographer, 1956, 21 May, Namu Island, Bikini Atoll, 5.5 x 6 ins (140 x 150 mm), Private collection of Brad Feuerhelm, LL/33991

Unidentified photographer, 1946, Bikini Atoll, 10 x 8 ins (255 x 200 mm), Private collection of Brad Feuerhelm, LL/34035

Unidentified photographer, 1954, 1 March, Hydrogen bomb testing, 15.5 x 12 ins (390 x 300 mm), Private collection of Brad Feuerhelm, LL/34019

Unidentified photographer, 1946, 25 July, Baker bomb, underwater Marshall Islands, 10 x 8 ins (200 x 250 mm), Private collection of Brad Feuerhelm, LL/33992

Unidentified photographer, n.d., Atom bomb explosion, 7 x 5 ins (180 x 125 mm), Private collection of Brad Feuerhelm, LL/33996

Unidentified photographer, n.d., Atom bomb explosion, 7 x 5 ins (180 x 125 mm), Private collection of Brad Feuerhelm, LL/33997

Unidentified photographer, 1954, Hydrogen bomb, Bikini Atoll, 5 x 7 ins (13 x 18 cm), Private collection of Brad Feuerhelm, LL/33998

Unidentified photographer, 1950, "the girls cover all windows and openings in the house with blankets or drapes to give double protection against radiation and against flying slivers of glass. ", 9 x 11 ins (230 x 280 mm), Private collection of Brad Feuerhelm, LL/34004

Unidentified photographer, 1950, When the warning comes that raiders are near if you are at home go the basement lie face down on the floor., 8.5 x 12.5 ins (320 x 220 mm), Private collection of Brad Feuerhelm, LL/34005

Unidentified photographer, 1950, Atomic bombing drills, 10 x 8 ins (200 x 250 mm), Private collection of Brad Feuerhelm, LL/34011

Unidentified photographer, 1946, Protective clothing, 8.5 x 6.5 ins (215 x 170 mm), Private collection of Brad Feuerhelm, LL/34025

Unidentified photographer, 1959, 28 March, Aldermaston-to-London march in protest against nuclear warfare, 8 x 5 ins (205 x 125 mm), Private collection of Brad Feuerhelm, LL/34016

Unidentified photographer, 1920s, Mademoiselle Curie in the laboratory, 7 x 5 ins (179 x 130 mm), Private collection of Brad Feuerhelm, LL/33994

Ifor Thomas, n.d., Portrait of Albert Einstein, Silver bromide print, Private collection of Brad Feuerhelm, LL/33990

Unidentified photographer, 1964, 6 November, Scientist J. Robert Oppenheimer. Director of the Manhatten Project and chief advisor to the United States, 6.5 x 4.25 ins (165 x 110 mm), Private collection of Brad Feuerhelm, LL/34015