Vintage Art Deco Pair Ceramic Busts Blanc de Chine Frank Graham Holmes (?)

Vintage Art Deco Pair Ceramic Busts Blanc de Chine Frank Graham Holmes (?) These have a captivating serenity and beauty. They do have a faint mold mark but it is illegible and there are no labels so I can not authenticate their maker. The facial features, long neck are almost identical to Frank Graham Holmes' Lennox pieces. Very good to excellent condition including crazing overall as expected with age. One has some unevenness to the glaze in a small spot on the back of the head; this appears to have been done in the process of making it. Measurements: 11" tall x 6" wide x 7"