Thanks for the additional info John.
I'll have to try and remember about the dremmel signature being post 72.
Interesting point about the height of the neck on these side stripes. Looking through Mark Hills book and some of the pictures of the Mdina glass shelves, although a little hard to make out a couple of side stripes can be seen on pages 25 and 26.
There is a photograph on page 26 of the Dexam catalogue from 70-71 which does indeed show a button top side stripe, with the button rim is sat virtually on the shoulders, similar to this one in the link:
https://picasaweb.google.com/114212950044348042742/MdinaGlass?authkey=Gv1sRgCLiUq5uRppO8eA#5714203056023296674Interestingly, on page 25, there are also a couple of side stripes shown on the Mdina shelves, although hard to make out, perhaps these may have a very slightly longer neck? I think the photo is circa 1970 so may be a year or so later than the ones depicted in the Dexam catalogue. The images are a little small to pick out the finer details.