Bronze Mother Cross in Envelope, Loch & Barenberger Oberstein/Nahe Fehldruck (!)

Tombak/brass based and in an excellent, unworn condition with all of the bronze wash still present. The enamel without damage. Not marked but a known variation.
The fitting envelope in a good, slightly used condition. Printed on the obverse with the designation and on the reverse with the maker „Loch & Barenberger Oberstein/Nahe “ also printed with the false spelling of the maker „Loch & Barenberg Oberstein/Nahe“.
Very unusual.