Cinelli “Tirolo” handlebars/stem from the 40’s-50’s.
The badge covers access to the quill bolt:
Tirolo with grips and without grips. The grips were made of bone and held in place with a screw on the underside. Rubber grips didn’t need to be held in place, so bars sold “senza manopole” did not have a screw hole in the bars: