Loetz Beer Pitcher, kristall optisch schief gedreht mit grünen Henkel, PN II-8079/ 3 Pt, ca. 1911

This is not the type of piece normally associated with Loetz, but orders are orders, and Loetz made pitchers like this one to be used as beer serving pitchers for customers such as Timothy Taylor & Co Ltd in London. They were made in several sizes, from 1/2 pint up to 4 pints. This one is the 3 pint size - about 6.5" tall and about the same width. The ground is kristall (crystal) and it has a twisted rib optic texture, with applied handle and rim in green glass. The green bits glow brightly under black light. The pontil is finely ground and polished. It is etched with an interesting logo that repeats itself five times around the neck. The logo is a scrolled double circle, with an image of what appears to be a hops plant on the left side, and a sea griffin on the right side. I'm trying to research the origin of the logo - if anyone recognizes it or thinks they know what it represents, please let me know!