North Western Railways I think Paul. 1846-1871. There's very little about NWR online but Wikipedia has a page about it here: http://en.wikipedia.org/wiki/Little_North_Western_Railway
- it was a small local (to me!) company with lines serving Morecambe, Lancaster and points east into the West Riding of Yorkshire. There are some mentions of it here: http://www.railwayscene.co.uk/showthread.php?thread=138
and my friend Roger Bingham, author of Lost Resort, the flow and ebb of Morecambe
(Cicerone Press, 1990) mentions the railway and he says it was usually referred to as the Little North Western to distinguish it from the L&NWR (the much bigger London & North Western Railway) which was a different company. The Little North Western was apparently also the owner of the North Western Hotel in Morecambe, which changed its name to the Midland Hotel in 1871, when NWR became a part of the Midland Railway, and was replaced by a new hotel of the same name on the same spot in the 1930s: the famous, recently restored art deco Midland Hotel.
BUT, that gives a problem with your 1926 date as NWR didn't exist then! However, there was another NWR company in India which started in 1886 and continued until the partition of India and Pakistan, so perhaps your jug refers to that one? There was a lot of trade between British companies and those in India (which was part of the Empire of course) prior to Indian independence (1947), and English glassmakers could probably have been contractors for some of the glassware used on the Indian railways. Is another avenue worth exploring....