I'd like to join in this one please, if only because it makes me look at an area about which I know exceedingly little
The world and his wife created 'latticinio', of course - but taking just the U.K. and the states ........Looking through the books, re jp's comments, but going back into the C19, Alexander D. Jenkinson(Norton Part Glass Works), Ediburgh - are quoted as leading exponents of the Venetian-style - although the only image of their 'latticinio' I can see shows pieces without the same really tight threading. Apparently Jenkinson ended up being part of Webb's Crystal. Staying with the U.K., and again in the latter part of the C19, Stevens & Williams certainly created some 'latticinio' pieces, with possibly a tighter pattern. As no doubt everyone else knows this 'facon de Venise' style was popularised by the material created by Salviati - in the C19 - and his connections with London - thence Powell etc., although Salviati's creations are in the more florid Venetian style. Staying with The C19 we apparently have a company by the name of Dorflinger & Sons, White Mills, Penn., who also dabbled in about 1890 - 1900 - and my only available image of their work shows the tightest of all lines, but a piece of more simple design. Cranberry, as a colour, was typical of much C19 work, so I don't think there is much mileage there re attribution. Ivo, why is it expected to have a tiny broken pontil, please? - and an obvious question, what degree of wear is there. Sorry if this is a little amateurish, but you never know, might be an atom of use in there somewhere, and as I say it does help me.