Vintage Rosina Fine Bone China Rhinoceros And Calf Mug

Cool vintage (I think from 1950s) fine bone china mug from Rosina showcasing a rhinoceros and its calf. A crown, a rose, Rosina Est. 1875 Fine Bone China, Made in England, BPA Collectables are written at the bottom of the mug. Rosina is a bone china manufacturers at Queens Pottery, Longton, England. Around 1941 the the brothers Oswald & Derek Shufflebottom aquired the business of George Warrilow & Son, and renamed it Rosina China Co. Ltd. They merged with Elizabethan Fine Bone China and became Crownford China Co. Ltd. Bone china is the strongest of the porcelain or china ceramics, having very high mechanical and physical strength and chip resistance, and is known for its high levels of whiteness and translucency. Approximate size: Diameter 3" x Height 3 1/2". Approximate weight: 5.4 oz Good condition, except for a something that looks like a hairline crack at the top of the mug, as shown in the last two pictures. Offers are welcomed.