Blackberry Spray - Fenton
Blackberry Spray is a fairly easily found pattern. It has a spray of berries around the edge and a plain exterior. Most examples have four sets of berries, but some only two. Found in hats that are ruffled (sometimes crimped), with 2 sides up, flattened and crimped, square (4 sides up), or jack-in-the-pulpit (crimped or not). The ruffled example above left is in red opal and the crimped jack-in-the-pulpit is red--a common color in this pattern.

Fenton also made a similar pattern with a band of vertical lines, Blackberry Banded.

Recently, a number of these unusually shaped Blackberry Spray hats have come on the market. They are flattened out and have a crimped edge. The crimped edge hat in vaseline, on the right, with marigold overlay sold at the 2012 Heart of America Carnival Glass auction . Photo courtesy of Seeck Auctions.
Above left is a blue 6 ruffled hat with only two sprays of blackberries. Maybe the factory felt that this design needed more detail and thus created the four sprays of blackberries as seen in the 6 ruffled hat in celeste opal to the right.