Giuseppe Pedrazzini changed his label for numerous times in his early years, this one is probably used for the year 1907 specifically or the instrument specifically.
Image from https://www.italiandoublebasses.com/pedrazzini1907.html
Answers will be greatly appreciated!
This is Manzoni, which was Augusta’s name for Ludwig & Mayer’s Aurora. It is here used with several of its alternates, see e, n, M.
Here’s a specimen from Dan Reynolds.