Can you help to identify this Botvinnik-Romanovsky Leningrad 1927 game

I am puzzled by the following game. It was in a collection from
www.ruschess.com, in with the 5th USSR Ch of 1927. Botvinnik was 16 at
the time, yet in the Ch of that year he drew with Romanovsky. In what
event was this game played?

[Event "Ch URS"]
[Site "Leningrad (Russia)"]
[Date "1927.??.??"]
[Round "?"]
[White "Romanovsky, Peter Arsenievich"]
[Black "Botvinnik, Mikhail M"]
[Result "1-0"]
[ECO "A09"]
[PlyCount "137"]
[EventDate "1927.??.??"]

1. Nf3 d5 2. c4 d4 3. b4 g6 4. Bb2 Bg7 5. g3 b6 6. Bg2 Bb7 7. O-O e5
8. d3 Ne7
9. Nbd2 O-O 10. Nb3 Nd7 11. c5 a5 12. bxa5 bxa5 13. a4 Bd5 14. Ba3 Nc6
15. Nfd2
Nf6 16. Qc2 Re8 17. Ne4 Rb8 18. Nbd2 Nxe4 19. Nxe4 f5 20. Nd6 Bb3 21.
Qc1 cxd6
22. Bxc6 Re6 23. cxd6 Bf8 24. d7 Bh6 25. Qc5 Bf8 26. Qxf8+ Qxf8 27.
Bxf8 Kxf8
28. Rfc1 Rd6 29. Rab1 Rb4 30. Bb5 Ke7 31. Rc8 Rxd7 32. Bxd7 Kxd7 33.
Ra8 Bc2
34. Rxb4 axb4 35. a5 Kc7 36. a6 b3 37. a7 Kb7 38. Rb8+ Kxa7 39. Rb4 e4
40. Kf1
exd3 41. exd3 Bxd3+ 42. Ke1 Bc2 43. Kd2 d3 44. Kc3 Ka6 45. h4 Ka7 46.
Rb5 h5
47. Rb4 Ka6 48. Rb8 Ka5 49. Rg8 d2 50. Kxd2 f4 51. gxf4 Kb4 52. Rb8+
Kc4 53.
Rc8+ Kd4 54. f3 Bf5 55. Rb8 Kc4 56. Rb7 Bc2 57. Rc7+ Kd4 58. Ra7 Kc4
59. Ra4+
Kb5 60. Re4 Kc5 61. Kc3 Kc6 62. Rd4 Kc5 63. Rd2 Kb5 64. Rxc2 bxc2 65.
Kxc2 Kc6
66. Kd3 Kd7 67. Ke4 Ke6 68. f5+ gxf5+ 69. Kd4 1-0

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