twisted sewing supports

Preferred label
twisted sewing supports
tvunnet heftbind
Note (en)
The sewing support material is twisted. Cords, of course, will always be twisted, but skin materials were also twisted in order to give them an even, round cross section suited to sewing. It is not always possible to determine whether a core has been twisted or rolled when only a cut or broken cross section is visible, and in these cases it is safer to offer both options in the form 'twisted or rolled?'.
Note (nb)
heftbind bestående av to eller flere skinnremser som er rullet eller tvunnet før bruk
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