Masunaga® KOUKI 107 Eyeglasses by Masunaga®. Color: 39 BK TORTOISE, 23 DEMI, 19 BK, Size: 51-19-140. The " "Rison107" is a classic Wellington shape, but when combined with thick temples, round ornaments, it is a women's frame that gives it a modern rock and elegant feel. Available in three colors, the #39 BK TORTOISE combines a brown base front with an impressive gorgeous pattern and a clear black temple, making it a luxurious beauty.