It sure looks Akro/Master, more Akro with those seams or cuts. But that size is just crazy for anything USA machine made and even extreme at 1.63 inches for any machine made. Akro and Master made 7/8 and one inch. Akro, Alley, MK, Vitro all made some over one inch but no where near 1.63 inches, round and smooth. At 1 1/2 inch and over is handmades vintage or contemporary. At 1 1/2 inch that would be one huge set of machine rolls. It would take four hours running to get heat built up in the rolls. At Jabo with the 7/8 size machine it would take at least one hour or most times two hours of making junk to get the rolls hot to make a round marble and they would have roll marks. The largest set of rolls which I have heard of is 1 1/4 inch.