A Beautiful "Editions Peters" production of Beethoven's Fidelio, "Klavierauszug mit Text" - Piano Reduction with Text (according to an online translation).   I can't find any date of publication, but I'll guess in the 1890s because of a BEAUTIFULLY INKED PERSONAL INSCRIPTION DATED 1899 on the blank endpaper before the title page.  Please see photos for further information as I can't read German.  

IN EXCELLENT CONDITION.  Bright red textured cloth boards with inlaid gilt and black decoration and print, front board and spine, only slightly rubbed on spine.  The boards with light corner and top/bottom spine wear, little edge wear, decorative floral endpapers, very solidly bound, no further interior marks in 163 clean and solidly bound pages.

B21