Aw: Re: IBM 1620 invalid character symbol

From: Jörg Knappen <unicode_at_unicode.org>
Date: Tue, 26 Sep 2017 15:28:53 +0200
I found the character in question on p. 52, it is a picture of something handwritten, not a typeset character. "Clearly" means something different to me.
 
--Jörg Knappen
 
Gesendet: Dienstag, 26. September 2017 um 15:03 Uhr
Von: "John W Kennedy via Unicode" <unicode@unicode.org>
An: "Leo Broukhis" <leob@mailcom.com>, unicode@unicode.org
Betreff: Re: IBM 1620 invalid character symbol
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>
Received on Tue Sep 26 2017 - 08:29:17 CDT

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