Derived from this method is the more elaborate flange-twisting technique, which involves hammering up or cutting out flanges into the body of the torc. The flanges, after having been fitted together, were soldered along the inner side in order to form, in cross-section, the shape of a cross. Co. Meath provide an example of the flange-twisted method. These particular torcs are very closely and tightly twisted. Another example of a flanged torc, found in Coolmanagh, Co. Carlow, is unusual because it was left untwisted.
Scholars hypothesize that a tear in the bar of gold deterred the goldsmith from finishing the torc.
Co. Derry . To produce such a torc, the goldsmith formed two flattened sheets of gold into hollow tubes, which were then bent into semi-circles. On the ends of the tubes are terminals through which cylinders penetrate. The tubes connect in an intricate mortice and tenon closure. In Britain and in Ireland, archaeologists have discovered approximately one hundred and twenty ribbon torcs, most of which were found in Ireland and Scotland.