You are thinking of the Input Menu (used to have a flag icon for your?
selected language) and the default items on it called:
I remember the flag in the menubar. In the early days of the single-user Mac that flag saved me from a trip to the CooCoo¡¯s nest. My precocious son bedeviled me by installing various romance language keyboard maps; just enough so that my touch-typing produced many misspellings.
What I¡¯m mourning is the loss of font-specific display of glyphs on the Keyboard Viewer. I don¡¯t remember when it disappeared, or why.
Jim