Has anyone ever seen a specimen of Doric Italic?

It is mentioned by Roy Millington in "Stephenson Blake The Last of the
Old English Typefounders", Oak Knoll Press.

The reference about Doric is:

Doric 12 1870: Stephenson Blake reissue. The first example of a sans serif letter taken from the William Caslon N 1816 specimen book.

Doric Italic 1892: Purchase of punches cut in Hamburg by H. John.