A game from the past

Below is a game played in 1957 - a match between Colchester and Ipswich from the Border League. Dr Kellerman, representing Colchester, has the white pieces.

[Event "Colchester v Ipswich, Border League"] [Site "Colchester"] [Date "1957.11.25"] [Round "?"] [White "Kellerman, Dr"] [Black "Smith, M. C."] [Result "1-0"] [ECO "E24"] {E24: Nimzo-Indian: Sämisch: Unusual Black 5th moves and 5...c5 sidelines} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d6 6. Bg5 Nbd7 7. f3 {Controls e4 and g4} O-O 8. e4 e5 9. Bd3 c6 10. Ne2 h6 11. Bd2 Re8 12. O-O Nf8 13. Qc2 Ne6 14. d5 Nc5 15. f4 $2 {White has two bishops pointing at the kingside and so is looking to open up the position - but the timing of this move is wrong.} exf4 $17 16. Rxf4 (16. Bxf4 Nfxe4 17. Bxe4 Nxe4 $17) 16... Nxd3 (16... Ng4 { looks better} 17. Raf1 g5 18. R4f3 Ne5 {and Black is winning material}) 17. Qxd3 g5 18. Rff1 Nxe4 19. Qf3 (19. Ng3 Nxg3 20. Qxg3 cxd5 21. cxd5 b5 $11) 19... f5 (19... Nxd2 $4 {Black should leave the bishop alone} 20. Qxf7+ Kh8 21. Rf6 Qxf6 22. Qxf6+ Kg8 23. Qg6+ Kf8 24. Qxh6+ Kf7 25. Nd4 $18 ) 20. Be3 c5 21. Qh5 (21. Ng3 $142 Nxg3 22. Qxg3 $17) 21... Nf6 $2 {gives the opponent counterplay} (21... Re7 $142 $19 {Black clearly has the better chances }) 22. Qg6+ {Fine, but Qxh6 is slightly better} Kf8 $4 {Should be the losing blunder} (22... Kh8 23. Rf3 Nh7 $14 {keeps Black in the game}) 23. Qxh6+ $2 { White has a clear advantage, but this does not take full advantage of Black's blunder} (23. Ng3 $142 {and White wins} Qe7 24. Nxf5 Bxf5 25. Rxf5 $18) 23... Kf7 $16 24. Qxg5 Rg8 $2 (24... Qe7 $142 $5 25. Rf3 Rg8 $14) 25. Qf4 $16 Rg4 26. Qf2 {White hasn't taken advantage of Black's error - Black's king is exposed but White is also vunerable.} Ne4 $14 27. Qf3 Ng5 $4 {Diagram [#] Black gives White another chance to win} 28. Qxg4 $18 {Black resigns} 1-0