Fire King Jadeite Restaurant Ware Extra Heavy 7 oz. C Handle Mugs

Fire King Jadeite most desirable mug in the Restaurant Ware line is the extra heavy weight thick C handle. One weighs 445 g and the other 450 g. Each one hold 7 oz of liquid Both are marked OVEN Fire King (in script) WARE. They stand approx. 3 1/2" tall They are in very good vintage used condition. The only flaws are pointed out with arrows, a small edge flea bite, a few darks specs on the handle, and what looks like a manufacturing thin line on one surface towards the bottom. From the book Fire-King jadeite CollectorsGuide, May 2024 "Manufacturer flaws, such as lines that resemble cracks but are smooth to the touch, are considered normal and do not affect value". The diners they've seen....!