All I can say is that it is not the Schott edition Plate 18953. That one is available here[1] --Coulonnus 07:22, 16 November 2011 (UTC)
- The one we have looks a lot like a Schirmer engraving, but it could be another American firm like Fischer or even Ditson. Around 1900 would be my guess from the general layout and spacing. Carolus 07:35, 16 November 2011 (UTC)
