h 1 or H 
(āch)
(āch)n. pl. h's or H's also hs or Hs
1. The eighth letter of the modern English alphabet.
2. Any of the speech sounds represented by the letter h.
3. The eighth in a series.
4. Something shaped like the letter H.
glass-topped keys, Royal typewriterTh is typewriter was manufactured in the 1920s by the Royal Typewriter Company of Hartford, Connecticut.