Mac OS Ogham

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Mac OS Ogham
Language(s)Primitive Irish
Created byEvertype
ClassificationExtended ASCII
ExtendsI.S. 434

Mac OS Ogham is a character encoding for representing Ogham text on Apple Macintosh computers. It is a superset of[1] the Irish Standard I.S. 434:1999 character encoding for Ogham[2] (which is registered as ISO-IR-208),[3] adding some punctuation characters from Mac OS Roman. It is not an official Mac OS Codepage.


Each character is shown with its equivalent Unicode code point. Only the second half of the table (code points 128–255) is shown, the first half (code points 0–127) being the same as ASCII.

Mac OS Ogham
0 1 2 3 4 5 6 7 8 9 A B C D E F
Ax ° £ § · ® ©
Bx ±
  Differences from I.S. 434


  1. ^ Everson, Michael (10 November 2001). "Mac OS Ogham to Unicode table". Evertype.
  2. ^ I.S. 434:1999: Information Technology – 8-bit Single-byte Graphic Coded Character Set for Ogham (PDF). National Standards Authority of Ireland. 1999.
  3. ^ National Standards Authority of Ireland (7 December 1999). ISO-IR-208: Ogham coded character set for information interchange (PDF). ITSCJ/IPSJ. Archived from the original (PDF) on 10 March 2022.