Seidel & Naumann Typewriter Serial Numbers for models: Seidel & Naumann Bijou, Seidel & Naumann Erika, Seidel & Naumann Erika 5, Seidel & Naumann Erika 5 Tab, Seidel & Naumann Erika 6, Seidel & Naumann Erika 9, Seidel & Naumann Erika M, Seidel & Naumann Erika Model S, Seidel & Naumann Erika S, Seidel & Naumann Ideal A1, Seidel & Naumann Ideal A4, Seidel & Naumann U S Mirsa Ideal 5 10:21 Look up Seidel & Naumann Typewriter Serial Numbers to find the ages for Seidel & Naumann typewriter models: Seidel & Naumann Bijou, Seidel & Naumann Erika, Seidel & Naumann Erika 5, Seidel & Naumann Erika 5 Tab, Seidel & Naumann Erika 6, Seidel & Naumann Erika 9, Seidel & Naumann Erika M, Seidel & Naumann Erika Model S, Seidel & Naumann Erika S, Seidel & Naumann Ideal A1, Seidel & Naumann Ideal A4, Seidel & Naumann U S Mirsa Ideal 5 Find out how old your typewriter is. The Archivist Seidel & Naumann Typewriter Serial Numbers Seidel & Naumann Typewriter Serial Numbers for all Seidel & Naumann typewriter models.