Iridescent knobbly freeform vase - Murano, Czech, Scandinavian?

Initially posted this on the Glass Message Board, but no one could ID it, so posting it here:

I recently bought this bowl/vase/holder from a retired glass collector. He hadn't been able to identify it, but thought it was Scandinavian.
I've been hitting Google images for weeks and am still confused.

I haven't found any Scandinavian glass that is similar to the chunkiness and weight of this piece. And I've ruled out Liskeard and Whitefriars knobbly vases.

It seems more like freeform Murano, especially with the splashes and stripes of blue and red in the clear glass under the iridescence, but I haven't found any Murano (or Scandinavian glass) with iridescence.

A friend suggested Czech/Bohemia and I wondered if it could be Chribska or Skrdlovice?







More pictures here: http://home-and-garden.webshots.com/album/582803530uECZLC

the metallic/oil slick sheen reminds me of old fashioned kids marbles - perhaps it IS a British vase, but not Whitefriars????

bistoboy wrote:the metallic/oil slick sheen reminds me of old fashioned kids marbles - perhaps it IS a British vase, but not Whitefriars????

Ooh, I hadn't thought of that. I hadn't looked at british beyond Whitefriars and Liskeard, It has a flat, ground, base, so not Whitefriars even if was a trial piece, and it has a bit of wear so possibly 60s era. Maybe someone doing their own version of the Whitefriars knobbly vase?

I thought Murano maybe?