Wow, Nigel! It is better than I hoped. I have never had a Nazeing piece. It feels like early-20th Century American glass. Thank you so much!
Now for the measurements:
Height 9 11/16 in, 246 mm
Width 5 1/4 in, 133 mm
Thicness 2.8", 71 mm
Inside diameter rim 2 in, 51 mm
Base diameter 4.55 in, 116 mm
Pardon the switch from fractions to decimals. I had to use a ruler on the larger measurements, instead of the calipers I used on the smaller.