Sun super tach, finally found

It's made by Sunpro before Bosch bought them out.
Is there a part # on the tach? I wouldn't trust the box, the Retro Line is made by Bosch. Is it Chrome or plastic, is the lense glass or plastic

Unless it was made before 2012 it's Bosch
Bosch completes acquisition of SPX Corporation's Service Solutions business
Bosch completes acquisition of SPX Corporation's Service Solutions business