This is a player's noren (Japanese shop curtain) from the Seibu Lions, distributed on April 26th. Design: #13 Takahashi & Imai, #5 Sotosaki & Genda, #60 Nakamura & Kuriyama, #21 Takeuchi & Nishikawa. It's marked as BCD, so it should include #5 Sotosaki & Genda, #60 Nakamura & Kuriyama, and #21 Takeuchi & Nishikawa!