The Gillette tech Fat handle was produced in the late 30's to early 40's, it is a straight forward, no frills 3 piece razor. I am not sure why Gillette did not sell loads of these as I much prefer them over the thin handled techs which sold in huge numbers for decades. The only improvement I can think of is a solid handle in place of the hollow one it was produced in. The razors was produced in both the US and Britain.
This is the American gold plated version of which the cap has been polished up to remove the last bit of gold plating to give it a steam-punky feel.
The razor weighs 48 grams and stand 82 mm high.