Yesterday I disposed SD250 bomb which was fitted with the 14" suspension lugs welded on support rings. Still have not found good enough literature for this bomb but can say that this is bomb used by Yugoslav air force on their US built P47D just after the WW2, mainly up to mid fifties. As bomb has lateral fuze pocket and US airplane has no installation for the German fuzes these bombs were fitted with Russian AV-1N fuzes. Those were only design changes on this bomb for post WW2 use in Yugoslav air force. Bomb was designated PRAB-250(n). Later SD-250 bombs were more radically reconstructed to PRAB-250J.