Germany, NSDAP. A Gau Honor Badge Thüringen; Numbered with Case

Badge in die stamped solid silver (stamped 0800), numbered "1421", 49.12mm(w) x 41.0mm(h), it weighs 15.6 grams, excellent quality badge with polished highlights, slightly worn, in extremely fine condition; with black leatherette case, displaying stamped party golden eagle, with red and white interior. The case is fitted for exactly this type of pin and this badge, and without any doubts its period made. I have not seen this type of case before, or in any references, hence it may have been privately made case. A rare and very desirable badge.