A man stands next to an industrial washing machine which hides one of the entrances to the Ayalon Institute, a factory for the production of 9mm bullets for the Sten submachine gun that was secretly built in 1945 by Jewish paramilitary group Hahagana during the British Mandate, in Rehovot, Israel, June 14, 2018. Picture taken June 14, 2018. REUTERS/Ronen Zvulun