HomepageProductsCertified German Porcelain Coins Ron Guth German Porcelain/Saxony 1921 20 Pfennig S-31a, Brown, 19 mm, R-1, Unc. German Porcelain/Saxony 1921 20 Pfennig S-31a, Brown, 19 mm, R-1, Uncirculated. Next Read: East German Porcelain/Koln 1989 Philatelic Exhibition, White, S-unlisted, 40.7 mm, Unc. » 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