Basic ZSU 23/4 with the quad 23mm replaced by unidentified twin 30mm guns. Known to have been trialled during the late 1970s and a single vehicle was spotted again during the soviet withdrawl from Mongolia.
Имхо, на фото Шилка ЗСУ-23-4, а не ЗСУ-30-2, просто верхние два ствола не попали в кадр.
Или я не прав?