Two kinds of HP-41 Blanknuts?

[Massimo Gnerucci]

(12-02-2020 06:32 PM)hth Wrote:  I find it weird that HP did not have the backarrow key visible on the keyboard. It should be more useful than the +-*/ keys, to indicate how to correct an incorrect key press in a multi digit entry?

Or ENTER^, for that matter.