Very good. And I would like to point point something about the e/WaA4 stamps. Costanzo, in his Proof marks book, deliberately misrepresents these stamps by expressly calling them doves, and drawing them to look like doves with their beaks pointing "up." Part of the problem with the stamps as they exist is that the dies were very poorly made, and crucial detail was worn away quickly in use. It is possible to see, in your examples, that there is a very tiny, pointy beak extending to the left (the eagle's right, as the bird's body faces the viewer). It is this detail which has worn away quickly to disguise the stamp, and make it possible to casually accept Costanzo's deception.
--Dwight
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