Allan also sent a lot of J Glass images of weights that he was involved in. If anyone can help identify the J numbers that would be good, the list in Simmonds book is a bit short.LINK
Allan also provided all his weight photos and these are being prepared for addition. While the J Glass and Perthshire weights show up under menu entry Allan Scott, there is a second entry under Caithness/Designers. Currently just under 100 of his weights are showing 70+ more to come.
J Glass menu entry is under John Deacons.