Topic: gadget impression on drinking glass foot

[Ekimp]

Thanks Cat - not very easy to see or describe...even harder to photograph Seems likely that the marks are from a gadget.

It took me a while to appreciate that the ‘T’ type mark wasn’t actually a mark left by the gadget given all the information to the contrary. Even so, I am left wondering how closely associated is the presence of the ‘T’ type mark with the use of a gadget. As I understand it, if a pontil rod was used and snapped off then the ‘T’ mark would be obliterated. Then after the period of using a gadget came machine made glasses (what ever that is and if the chronology is correct) where there is no mark left on the foot.

So...although the ‘T’ type mark isn’t the mark left by the gadget itself, does it indicate a gadget was actually used, even if there is no other evidence/marking from a gadget on the top of the foot? Or to put it another way, would the ‘T’ type mark still be visible if a method of manufacture other than the use of a gadget was employed?

[Paul S.]

the best source for answering these questions, is 'The Hallmarks of Antique Glass' by R. Wilkinson published by Richard Madley. 1968  -  it should answer all of the above - which are features occurring on glasses post c. 1830/40            An inexpensive book, and should be readily available somewhere like Abe Books.
Gadget marks and Y or T shaped shears marks are features found after the above date, so fall outside Peter's (oldglassman) period of collecting  -  so he gets it easy  -  only has foot scars and blips (thickening) on the rim to worry about.

[catshome]

Amazing what you can learn from such an unassuming little piece of glass.  Thank you all for your input.