Details & Changes
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Dogleg: 4,8 cm. high. All Barndoors have the
4,8 cm. dogleg.
Dogleg: 2,4 cm. high.
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On early barndoors the lower part of the doglegs were welded on. Later it was made out of one piece.
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On all barndoors and later models (until approximately 1959), the doglegs were welded together out of 4 pieces,
later models only used 2 pieces. On the old model, the construction welds were visible.

More info about doglegs