Lot 40311 – 1913 Romanov Tercentenary 5 Rouble state 4 complete die proof in 3 different shades of brown on wove paper

1913 Romanov Tercentenary 5 Rouble state 4 complete die proofs in 3 different shades of brown on wove paper without the names of the designer and engraver beneath, all possibly from the Tsar collection published in the Yamschik-Post Rider 1983, No 12, page 15.