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Glass / Re: Vermicular etched wine glass.
« Last post by Ekimp on Yesterday at 08:13:14 PM »The etching is on the outside surface. The matt frosted areas are by abrasion (grinding). I believe it has been acid etched, then frosted. Seven inches high.When I said it has been acid etched, then frosted, that is the vermicular pattern was acid etched first, then the surface was frosted by abrasion.
I thought it would be interesting to compare closeups of the abrasive frosting on this Richardson goblet with John Northwood white acid frosting developed c.1867.
The white acid frosting has been used in the decoration of the comport shown below (first two photos). The exact same pattern can be seen on page 14 of the sketch book held by the Corning Museum "Sketches of etched glass. J. J. Northwood about 1881-1884".
The white acid frosting is shown first, at x100 and x175 magnification. The abrasive frosting on the goblet is shown below that at the same magnifications. The x100 images show an area approximately 1.35mm across and the x175 images show an area approximately 0.75mm across. In the x100 magnification image of the white acid frosting, in the top of the image you can see the edge of one of the acid etched outlines.