| Book | Page | Context |
|---|---|---|
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leaves 55 59 Ser 4 SBC 3894269 2 66 00 12 Ieaves 2 stage 55 59 Ser 4 5 6 exc SBC 3720586 2 28 35 5 leaves auxiliary spring |
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3894269 12 2 1 2 3717642 52 26 26 3894270 25 1 2 25 1 2 3717645 23 7 8 23 7 8 NOTE A Auxiliary Spring NOTE B Assembly is not serviced |