The internet can be your friend but it also can debunk a fraud.
https://en.wikipedia.org/wiki/Gerald_Holtom
Trademark registration of the logo was never carried out, and since the 1960s the logo has become known to, and used by, the public as a general-purpose peace symbol.[11][12]
Nuclear Disarmament Symbol
Flag semaphore letter N
Flag semaphore letter D
Flag semaphore superimposed letters N D
In addition to this primary genesis, Holtom additionally cited as inspiration Goya's Peasant Before the Firing Squad:[9]
I was in despair. Deep despair. I drew myself: the representative of an individual in despair, with hands palm outstretched outwards and downwards in the manner of Goya's peasant before the firing squad. I formalised the drawing into a line and put a circle round it.[13]
The reference is to Goya's The Third of May 1808 (1814), although the peasant shown in this painting has his arms stretched upwards, not downwards.