This is a 128 that I got a few months ago, and I'm questioning its identity. There is no embossing. The price guide has one EIN for a NO EMBOSSING 128, and says it's a W-T product that can be expected to be found in clear, off clear, straw, light green or light green opalescent. What I have here is definitely an icy blue, in fact it's almost a cornflower blue. I'm vaguely aware, I think, that this style was made in South America and possibly in some color tints like this. Is this a South American piece? I just don't know much about insulators beyond North America.

Update: Thanks to several of you who responded. It would appear that it is indeed an Argentine insulator. I wasn't aware of that when I bought it on eBay, and I don't think the seller was aware, either, but I don't know for sure.