The blue and white flask is of rounded rectangular form, the body depicts flying dragon amidst clouds and over raging ocean waves, below ruyi patterned medallions with flowers and vines, four carved chilong handles mounted on the shoulder, confronting the small opening.|Yuan Dynasty period.|"Grading and Classification of the Yuan Blue and White Porcelains", item #12, page 80, ISBN 978-986-89885-4-5, June 2016, First Edition.|Height: 15 in (38.1 cm) Length: 4 3/8 in (11.1 cm) Width: 11 in (27.9 cm) Length: 4 3/8 in (11.1 cm)|元青花如意雲肩龍紋四繫扁方瓶|該瓷器的胎質堅硬，通體施以白釉，白中閃泛青色，釉質細膩，施釉較厚。青花色澤鮮明，採用進口蘇麻尼青料繪製，濃淡相間，有明顯鐵鏽斑沉澱，色濃處自然暈散。青花圖案結構緊密，飾紋繁密有致，層次分明，力求簡潔，如行雲流水，恰到好處。釉面溫潤如玉，寶光盈盈，定為一級品。《大元至寶 台灣元青花分級收藏集萃》，#12, 80頁, ISBN 978-986-89885-4-5, 民國105年6月初版。