Vintage hand blown aurene studio art glass John Macpherson paperweight sphere

Up for sale is a wonderful hand blown studio art glass paperweight made by John Macpherson. It is done with an exquisite detailing in a spherical form, has very rich color, and an aurene textured finish that shines beautifully. It's signed on the bottom edge and measures 3 3/4 inches wide by 3 3/4 inches tall. It has a couple small surface chips as shown in.