chocobogreens Posted December 4, 2020 Report Share Posted December 4, 2020 I don't know if the two marks in the last pictures are pontils or surface bubbles, but they are on opposite poles Link to comment Share on other sites More sharing options...
Steph Posted December 4, 2020 Report Share Posted December 4, 2020 It's a machine made marble, so the marks wouldn't be pontils. (A pontil is where the metal punty was attached in the process of making a handmade or partially handmade marble.) The marks do look like bubbles. I would say yes to WV swirl. Alley is a type of WV swirl ... and it's a good candidate for this marble. Link to comment Share on other sites More sharing options...
Chad G. Posted December 4, 2020 Report Share Posted December 4, 2020 The depressions in the last 2 pics are what appear to be called "dimples" Caused from a subsurface trapped air bubble that has collapsed inward on itself while the glass was still hot leaving a "smooth edged" depression in the surface of glass on the marble." A dimple " Link to comment Share on other sites More sharing options...
wvrons Posted December 4, 2020 Report Share Posted December 4, 2020 Most likely Alley or Champion. A machine made marble not handmade with pontil. There are different pontils. Some below. Link to comment Share on other sites More sharing options...
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