Mystery solved by m and Adam A. Well done folks. This must be a firm attribution. Do you have approximate glass making activity dates for W. Walker, Adam? Did you guys cross paths at some point on the contemporary English glass scene at some time in the last twenty years or more? In any event, I have noticed that your input on GMB is very useful and interesting. Especially concerning glass making in England, as well as European glass making techniques. Your knowledge is significant, as it is based on direct experience in the field, that continues expanding today. I hope you carry on finding time to drop in! Enthusiasts, historians and collectors appreciate it!
Robert