They are somewhat mild shavers made in a Gillette plant in Canada with a patent date of 1932. Does it have any other numbers?
IIRC a Tech with slotted lather holes was made post WWII like ones made in the U.S.A.
Irridium plating is thought to cause loss of sleep. Users tend to post questions at 3am about their razors.....
Congrats on your razor. How do you like the shave?