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I would say so as most of the razors TI make are half or full so when they state heavy grind it all points to the razor being quarter hollow.

Follow the link it's the 13th razor from the top. 6/8 and forged spine razors There are many nice vintage Japanese western style straights with quarter hollow grinds as well, my best shaver a vintage...

TI make quarter hollows so do Hart Wacker and Heljestrand there are quite a few makers out there who supply and make quarter hollows including quite a few custom makers.