H with stroke

It is used in Maltese for a voiceless pharyngeal fricative consonant (corresponding to the letter heth of Semitic abjads: Arabic: ح, Hebrew: ח).

Lowercase ħ is used in the International Phonetic Alphabet for the same sound.

[1] In Unicode, the special character ℏ (U+210F), represents the reduced Planck constant (h/2π) of quantum mechanics.

The lowercase resembles the Cyrillic letter Tshe (ћ), or the astronomical symbol of Saturn (♄).

A white uppercase Ħ on a red square was the logo of Heritage Malta until 2022.

Letter "Ħ"
Perez de Ayala's version of Lord Prayer in Spanish and Andalusian Arabic (1556), compare to Maltese:
ħobżna ta' kuljum agħtihulna llum.