Aventurine Butterfly (H Cane)

A beautiful, small aventurine butterfly - the body in green, the upper pair of wings in gold with 3 yellow dots and the lower wings in red aventurine each with a single yellow dot - floating above an opaque sky-blue colour ground.
Signed on the underside of the colour ground with a pink/white H cane. Flat , polished base.
On page 89 of his book: “Masterworks: the Paperweights of Paul Ysart”, author Colin Mahoney illustrates an almost identical example and writes: “the least common butterflies have aventurine wings or wings made of many canes. It is certainly a collector’s dream to find one of these rare types of butterflies”...