Issued by Stempel in 1912, followed by Kursiv (1913) and halbfett (1914) styles. Also carried by Enschedé as Olga (all 3 styles), by Jezynskiego as Hela (before 1940), and by Pierallini as Serie Siena. [Reichardt] The halbfett was also available from Stempel in a Cyrillic version. [Seemann] Comes with a set of ornamented initials.