Unknown Loetz shade on Austrian bronze lamp

Here's a fun Austrian bronze candlestick lamp base that I added a shade to. The pair remind me of an pheasant sitting in an apple orchard, of which I have both here where I live. The base has no markings I can see, other than a retailer sticker from Brooks & Son, Goldsmiths, Edinburgh.

The shade is an unknown Loetz piece that has ivory base glass. The top half of the shade has large silver spots over moss green threads pinched together irregularly. The bottom half of the shade has moss green threads pulled into irregular drips over honey brown speckles .

The interior is silver. The bottom rim has 8 ruffles and the top rim is well ground and polished. Size 5 .25" x 5" with 2.25" rim dia.