An early (1936-38) Hotor HJ shoulderboard for Bann 26 Magdeburg, Mittelelbe.   In very good unused condition.  
This is very unusual as the Bann numbers are not  stitched in the usual Motor Pink, but are metalic add-ons.
Possibly the very same item illustrated in David Littlejohn's book "The Hitler Youth", P47 (although he mis-identifies the strap as having vermillion piping)