The following symbols are used throughout THP publications:

Digital revival complete or in progress by a THP Partner
# Other digital revival known at this writing
= Identical to the following face (different pre-digital 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 (UK, Europe) by the person cited in the year cited

Specimen and Chapter Spreads

As illustrated in the Sample Spread, historical information is tabulated with full specimens on left-hand pages.  Color-coded text links to documentation sources and extensive supplementary information about the typefaces, designers and producers.

When documentation for a field is missing or inconclusive, 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 letterpress 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 patent/registration 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 Punch-Cutters).

  Design Owner/Nationality.  Name of the designer’s employer, client or business.  When the designer is not attributed in available literature, the owner’s nationality is substituted.  When the design was not patented or not assigned, the earliest-known vendor is entered.