These are assumed to be card moulds. Very heavy laid wires @ ~ 2.5 wires/cm with thin wires between every second pair of heavy wires. Whilst these might be thought to be to fill the gap to avoid fibre going through between heavy wires, why are they not present between the other pairs of heavy wires? 480 x 730 mm with tear wires to divide to 3 x 7 = 21. Made by E Amies & Son 1/1926.
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