Bomb Station Distributor Selector SD-1 for TBM Avenger C-45 Protection for the airplane against

Protection for the airplane against damage from its guns

mso-bidi-language:#0400

The scale is interesting in that the long pointer rotates clockwise from the 6 o'clock position indicating altitude in 100 Meters per index tick mark along the outer scale

The original owner's last name in handwritten on the cover

Bomb Station Distributor Selector SD-1 for TBM Avenger C-45 Protection for the airplane againstThis is an authentic WWII era Bomb Station Distributor Selector SD 1 as used in the US Navy's TBM Avenger multi purpose carrier based bomber. The Distributor Selector was located in the TBM's bombardier's compartment behind the flight deck. See photo and page from the TBM manual showing its location. According to the TBM Avenger Flight Manual date Nov 1944, the TBM could carry bombs in the following configurations: 12 100 lb bombs, 4 500 lb bombs, 1