Auction Series 257-264 in Zurich Day 4

Danube Steam Navigation Co 1866/1900: 4th Reprint, Die I, Composite Plate Proof for 17 kr. and 10 kr. values imperforate, produced circa 1900 in a block of ten (2 x 5) showing all five types of each stamp in a vertical column, paper 0.055-0.65 mm. as in the issued original stamps with 17 kr. red used for Stone R7 and the 10 kr. red used for Stone R8. The intermediate Transfers from this composite Proof were repeated to make a final Printing Stone of 100 subjects in each case. Composite Proofs of this date in philately are always very scarce, this sheet being almost certainly unique.rnProvenance: Collection Sturany; Collection Julius Steindler, RL, Basel, 14 March 1972, ex lot 367.
Catalogue 261: Stamp Issuing Steamship Companies