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The SS Zeltbahn
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It's interesting to see how much whitened thread was used in early tarn (heer) and zelth (heer and ss).
Threatened with a Bayer whitening patent of 1891 ( Wäscheblau I think the correct German mame)if I well remember ;these threads bluish under wood light.Last edited by viva_giulio; 08-08-2017, 05:52 AM.
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