Signal and its related designs
Klingspor Museum’s Walter Wege record dates Signal to 1931, Script Signal and Block Signal to 1932, and Deutsch Signal to 1934. It names H. Berthold AG as the foundry. Those entries establish a sequence of related named designs rather than one undifferentiated font released on a single date.
Read the museum’s Walter Wege record for the source names and historical alphabet showings. Keep Signal distinct from a foundry called Signal or an unrelated design that happens to share the word.
Identify the full name before comparing a sample
The museum record presents the named treatments separately. When researching lettering in a poster, record whether the source calls it Signal, Script Signal, Block Signal or Deutsch Signal. Compare several letters and punctuation marks rather than identifying a whole alphabet from one similar capital.
A useful research note includes the specimen source, full style label and the particular letters visible in the sample. If the match remains uncertain, describe it as a comparison rather than declaring an exact font identification.
Historical lettering and digital editions
An archival alphabet tells you about the historical design. A current digital resource can involve additional drawing, spacing, character coverage or production decisions. Its own creator and edition should therefore be recorded separately from Walter Wege’s original family.
The museum PDF is not an installation file. For a practical explanation of the difference, see font file types and typeface versus font. Do not infer a software download or its terms from an image of an old specimen.
Make an independent script comparison
Set a short heading with a plain date line and compare Yellowtail with Oleo Script. These are independent designs that can help you study script rhythm and spacing; they do not reconstruct Signal. Use the original museum specimen for a historical comparison.
Keep wording and approximate output size stable while looking at capitals, repeated letters and punctuation. Leave enough room around flowing shapes and use the retro font guide to explore broader design directions.
Your questions, answered.
Who designed the historical Signal typeface?
Klingspor Museum credits Walter Wege and lists H. Berthold AG as the historical foundry.
When did Signal appear?
The museum record dates Signal to 1931, with related Script and Block designs in 1932 and Deutsch Signal in 1934.
Are Yellowtail and Oleo Script versions of Signal?
No. They are separately named comparison fonts. The museum records show the historical Signal family.
Sources & background
Sources supporting this page’s explanations. Practical examples are our editorial suggestions.