I would like to see images in natural light in front of a solid white (or close) background. Same angles as shown here.... With your permission I can also copy and show them to a research group I am involved with for opinions....
I can also look in the Loetz Musterschnitte, a catalog of some shapes and see if the form is there.... It only contains around 10% of their forms though so it is just a shot at finding it....
Craig