Key
The following symbols are used throughout THP publications:
# Known to be digitized at this writing
= Identical to the following face (different tradenames)
~Comparable to the following face
≈Strikingly similar to the following face
≠ Clearly distinguishable from the following face (same or similar tradename)
®Design patented (US) or registered by the person cited in the year cited
Specimen and Chapter Spreads
As illustrated in the Sample PDFs,1·2 historical information is tabulated with full specimens on left-hand pages of specimen and chapter-introduction spreads. Tables with documentation sources and extensive supplementary information about designers and design owners are hyperlinked to color-coded text.
When documentation for a field is missing or not definitive, the entry reads Unknown or Unverified (annotated by a plausible hypothesis and its source). In rare cases of conflicting credible evidence, both are entered.
Pre-digital Tradename(s). Metal or wood [letterpress] and mainstream photo-lettering or transfer-type tradenames [Franklin Photolettering, Solotype, Letraset, etc.] are identified and separated by an equal sign. When a numbered face is traced to its original source, the number is entered; otherwise, Untitled precedes the pre-digital tradename. Digital tradenames are disregarded.
Date. Year of earliest specimen examined by THP or cited by a credible authority. Dated producer catalogs, advertisements or review specimens published by trade journals may predate national registration by several years and/or attribute a face to a source different from one accepted in the past. When the best-available date is only approximate, the letter “c” [circa] precedes it. When more-precise information is known, the following symbols apply:
< Before the year stated
≤ During or before the year stated
> After the year stated
≥ During or after the year stated
± Between the years stated
Designer/Nationality. Name of the person(s) who first imagined and/or drew the glyphs. When the designer is known, his/her name and then-current citizenship are entered. Unless a credible authority has reported otherwise, US-patented designs are attributed to the Inventor of Record (a TF principal, rarely qualified as a designer—see also 19th-Century Designers).
Owner/Nationality. Name of the designer’s employer, client or business. When the designer is unknown, the owner’s nationality is substituted. When the design was not patented or not assigned, the earliest-known vendor is entered.




