The 1929-S LWC has many s/s but I dont think the one below is listed. The 1945-S IMM was not found. It's the ball serif version of the mint mark, and the ball should be on the top, but its upside down. Similar to the 1946-s imm:
Maybe I'm mistaken but I thought you were the one who puts up that big sign about not feeding the trolls. The sign is needed here on this thread.