coming back to the subject of feet and how to define their appearance and as an aid to dating, and speaking here of C19 - early C20 traditional wine glasses whether clear, plain dark Bristol colours, or those of a uranium disposition.
Barrie Skelcher admits to some difficulty when it comes to the various methods of creating wine glass feet - and equally difficult from our point of view as to how to determine which is which - and their possible dates of manufacture, and in essence he created just three categories ………….. the hand shaped foot, the blown foot and the molded foot (his books were States creations).
Not easy to precis all that he says on this subject, but here goes ……………...…………..
the hand-shaped foot …...……...….. after forming the stem, a knob of glass is attached at the terminal end and manipulated by various tools (pucelas plus flat piece of wood) into a circular flattish shape - some excess glass may have been cut away to help form a better shape.
This might be considered the least refined method, and it has a tendency to make for a "squared or thickly rounded edge" and the foot may lack a true circular shape - all depends on the skill of the individual worker.
This particular method came to mind after seeing Skelcher's photo of the edge of the foot on the example he used in his book, and the foot showing on the piece here, which also looks to have a very thick chunky edge. Presumably feet made by such a method will show substantial striations etc. from being worked by tools.
Either it's me being thick or not reading properly, but not sure quite what date period is being referred to as the hey-day of this method - I suspect this is possibly the earliest of the C19 methods, but don't quote me.
]blown foot …………. Here, Skelcher is helped in his description by the fact that Apsley Pellatt describes this very method of foot manufacture in 1849, where it was used to form the foot on a wine glass .......... a gather is blown into a spherical shape, then attached to the lower end of the stem, then opened out with the pucelas. Skelcher suggests this process can be identified by three characteristics:-
The first is a mark on the flat part of the foot where the opening out process was started, though apparently it's very difficult to locate the mark.
The second is the shape of the edge of the foot itself. Because the flat is being produced from a curved surface, an element of this curvature is likely to survive this opening out process - consequently the edge will be curved from the top downward to the edge, but the base will be very flat. So, where you get a flat base meeting a downward curve the edge will tend to be sharp and maximum wear is likely to appear on this extremity - completely the opposite to the hand made foot. Skelcher, with the help of the Pellatt reference, appears to be saying that the blown foot occupied the major part of the middle of the C19 at least until the 1870s - but like many older trade practices it's known that there's often a major time overlap in methods.
molded foot ................. the naming of this method was apparently Skelcher's own terminology, and was formed, again, by squeezing a knob of glass - already on the end of the stem - between two spring loaded pieces of wood which were slightly recessed. Hajdamach reproduces a patent design by J.H.T. Richardson from 1876, which consists of a base board with a recess to form the foot and a spring loaded top board which is half the width. Wilkinson shows a similar but slightly different design but with both tools the principle is the same.
The knob of glass on the end of the stem is first squeezed then the glass rotated to form the circular foot. This process would leave characteristic tell tales, which in theory should distinguish it from the other two methods.
Although there would be striations on the glass where it had been turned in the wood, these would be smooth, regular and there would be an absence of tool marks - plus - the edge of the foot will have a different shape, and the point of maximum wear may be set in from the extreme edge - this edge should show as a uniformly rounded and symmetrical curve. As for dating this particular process, Skelcher says "For the purposes of dating, I assume the molded foot was introduced from 1875" .
It's tempting to think that the majority of Victorian wine glasses we see on the Board are moulded feet, but I'm flying a kite really with that suggestion.
So, that in theory is the nature of the feet of Victorian wine glasses, but of course there's a world of difference between theory and practice - and differentiating between them really is not as easy as it sounds.
References ………
Apsley Pellatt - Curiosities of Glass Making pp. 84-85
Charles Hajdamach - British Glass 1800-1914 p. 33
R. Wilkinson - The Hallmarks of Antique Glass p. 23
and of course sincere indebtedness to Barrie Skelcher, without whom virtually none of the above could have been written.