Razor Identification Help

Good day, gentlemen!

This razor belonged to my Grandfather, but most of the markings have been ground away. The only marks left are two vertical lines on each side of the tang (highlighted in orange in the second photo below). The blade looks like a 5/8 full-hollow grind to me, but please set me straight if I am wrong about that.

Can any of you tell me the manufacturer and model of this razor? Any idea when it was made?

Attachment 78001

Attachment 78000

Attachment 78002

Kinda looks like a Genco. But, there are gentlemen here with way more experience than I. Hopefully they will weigh in. Good Luck!