This is what is printed in the manual by its editor that probably used metalic fonts, however I doubt the actual typewriter had this symbol on the wheel of hammers, and it was probably just overtriking the two letters X and I.
2017-09-26 15:03 GMT+02:00 John W Kennedy via Unicode <unicode@unicode.org>: > I don’t know what your snippet is from, but the normally authoritative IBM > manual, A26-5706-3, IBM 1620 CPU Model 1 (July, 1965) displays what is > clearly the Cyrillic letter. Whether it should be regarded as that, or as a > distinct character, is another question. See http://www.bitsavers.org/ > pdf/ibm/1620/A26-5706-3_IBM_1620_CPU_Model_1_Jul65.pdf > > > > On Sep 26, 2017, at 12:48 AM, Leo Broukhis via Unicode < > unicode@unicode.org> wrote: > > Wikipedia (https://en.wikipedia.org/wiki/IBM_1620#Invalid_character) > describes the "invalid character" symbol (see attachment) as a Cyrillic Ж > which it obviously is not. > > But what is it? Does it deserve encoding, or is it a glyph variation of an > existing codepoint? > > The question is somewhat prompted by > > 2BFF 1 HELLSCHREIBER PAUSE SYMBOL > > in the pipeline, although I learned about both earlier today within a few > minutes of one another. > > Thanks, > Leo > > <invalid.jpeg> > >
