I found this yesterday in a local charity shop. It's pressed glass, with four feet very like the Chippendale ones. The pattern around the sides is a fan and diamonds between clear/patterned ribs - very much like that shown on The Glass Man's website as the 1890 Suite, but the base is totally different, having a large starburst pattern and then the clear green feet below.
It looks to me like a Davidson piece, but I can't find another like it online or in my scant glass book collection, so can anyone please confirm the maker and the pattern for this bowl?