'Treuedienst Ehrenzeichen' being of the so-called: 'Sonderstufe' as awarded for 50 years of loyal-service

This is a truly used - but nevertheless nicely preserved and actually quite rarely encountered! - example of a so-called: 'Treuedienst Ehrenzeichen' - golden/silver class, being of the so-called: 'Sonderstufe' (as was awarded for 50 years of loyal civil service!) and that comes in an overall nice- (ie. surely issued- and/or just moderately used- ie. worn-) condition. This is a truly very detailed example that comes mounted onto its (pre-confectioned and/or neatly pre-folded) cornflower-blue-coloured ribbon (which still retains its period-attached pin for wearing it on a tunic). The medal on offer here has never been cleaned and is just somewhat dirty ie. stained and has a somewhat darkened age-patina overall: the silver-finish shows some blackened tarnish but the piece has I deem never been cleaned nor polished. The black-enamelled swastika is in pristine condition and does not show any damage or defaults (as can be noticed on the pictures(. Simply an honest - and actually rarely encountered! - 'Sonderstufe'-example that is not that often offered for sale: I deem that I have priced this neat example accordingly!