The glass seems faultless.
It's very simple for his work but I did find one another simple design like it again which was for De majo in 1991 through a google search. I would post the link but i'm not sure if I would be allowed as its for sell or was for sell...
"He started working in Murano with the well-known companies Fucina degli Angeli and the Vetreria de Majo.
His first individual works for Fucina were sculptural in nature. In 1987, he started working for Vetreria de Majo. That same year he was awarded the Premio Selezione by the city of Murano. In 1990, he designed a series of thirty goblets, goblets that were exhibited in the Palazzo Querini Stampalia. Rosa Barovier Mentasti wrote of this work: “Ohira’s creative sensitivity can be retraced to his studies and affection for Murano’s historic traditions, its fine blownglass and exquisite hues, the refined techniques of local maestri. While Venetian colors are filtered through oriental harmonies, the study of antique styles has led to the highlighting of essential elements in traditional models, thereby fostering the invention of new proportions in post-modern works."