HomepageProductsCertified German Porcelain Coins Ron Guth German Porcelain/Gross-Wartenberg 1921 50 Pfennig, S-135a, Brown, 24 mm, R-2, AU German Porcelain/Gross-Wartenberg 1921 50 Pfennig, S-135a, Brown, 24 mm, R-2, About Uncirculated. Next Read: German Porcelain/Boldixum Undated 1 Mark S-108a, Brown, 29 mm, R-3, AU » Ron Guth: Related Post COINKING® PROVENANCE! West Germany 1983-J 5 Mark, Karl Marx, PCGS PR69DCAM COINKING® PROVENANCE! West Germany 1982-D 5 Mark, Johann Wolfgang Goethe, PCGS PR69DCAM COINKING® PROVENANCE! West Germany 1984-J 5 Mark, Felix Mendelssohn Bartholdy, PCGS PR69DCAM