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The font I use is a free font :
Alto Sherif Smalltalk-72 "Legacy"
http://www.kreativekorp.com/software/fonts/index.shtml
I think the "Legacy" stands for the encodings of underscore as left-arrow, and circumflex (caret) as up-arrow.
There are other fonts that do this, as for example the PETSCII encoding (on that same website) indicates the Commodore PET series of computers, had the same encoding of left-arrow and up-arrow where modern ASCII has its underscore and circumflex (caret).
Presumably a wide range of computers in the 1960's and 1970's had those symbols on these positions.
Regards, David Stes
beginners@lists.squeakfoundation.org