Tk::NumEntryPlain(3pm) on Linux
The text 143f149fae3d, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
A numeric entry widget
Flags it lists
-
-bell -
-browsecmd -
-command -
-maxvalue -
-minvalue -
-textvariable -
-value