Enjoy the pictures my fellow enthusiasts!
But this is really... unbelievable ! And even a NOS chrome Toggle in its original case... Congratulations !!
After the war ended, he went to work at Gillette. He "worked himself up the ladder" in Gillette, from apprenticing in the machine shop, to tool and die maker, to eventually being the staff assistant to the Vice President of manufacturing. He had a superb engineering mind, and was an insightful analyst, but was most known for his patience and kindness. He knew, as was well-liked by, practically everyone who worked at Gillette's Safety Razor Division ("World Shaving Headquarters") in Boston.
Because he was such a nice guy, corporate politics was never his interest, and -- despite multiple offers -- preferred being more of a "behind the scenes" guy (working FOR the Vice President) than a top-level executive himself (being a division manager or Vice President).
It turns out not all, but most of this collection is from the "museum" at ‘Gillette’ safety razor division in South Boston. The museum, from time to time, was cleaned-up and these items were to be discarded so his dad got offered these!
He probably knew the whole history of the Tech : who invented it, the exact year of its first release, how came the idea of its head geometry, etc... That's some kind of informations that always interest me !