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Sodra "H"
After the success of the Mercra "H" lantern with its controlled cut-off
optics (semi-cut-off), the firm introduce this sodium version of the lantern
in 1939.
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???
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140 SO/H
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BC
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Side Entry
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No Gear
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1939 Programme
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Sodium Open Lantern
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SL.715
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140W SO
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BC
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Top Entry
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No Gear
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1950s book
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SL.716
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85W SO
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BC
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Top Entry
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No Gear
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1950s book
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SL.735
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140W SO
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BC
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Side Entry
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No Gear
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1950s book
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SL.736
|
85W SO
|
BC
|
Side Entry
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No Gear
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1950s book
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