Thanks for the comments David and Sid.
English glass is not my area, but I could see, at the very least, this is an important document relating to one senior cutter's experiences at Stuarts in circa 1920, and so I have arranged for digital copies at pretty high resolution, circa 5 meg each, to go up to Broadfield. It is a part of a family archive and as such has to remain so, which is a decision out of my hands. I am pleased to have managed to get permission to copy the document. I am interested in what Stuart historians may make of it, the patterns are mostly well known I should think, but there are odd things too, one jug in the notebook appears to have been made specifically at the request of a Mr "F. H. Stuart" for example... and other specifics relate to the exact cutting time 40 or 50 patterns were expected to have been produced in. This kind of information I would not necessairly expect to find in offical documents, but as I say, it is not my research area! I am pleased that some enthusiasts can see the merit in preserving the document and I will get a cd up to Broadfield asap... It is an interesting thing and I hope to leave the link running for at least a couple of weeks or more,