Original Wehrmacht Heereswerkstätten Feldgrau linen thread spool. This came from an army work shop so it would have been used by the German army itself not simply by companies making stuff for the army. It would have been used for repairs, modifications, and unit manufactured items.
Price is for one spool. These are generally in good condition, some labels may have some minor damage, like a small tear from storage or a loose thread. Very nice example.
The empty box the thread came in is available separately.