Here is what I believe to be the correct chords and key for this wonderful song.
I hope it's right. ;-) else, 'flame' me :P

F                 Am              Dm         F7
Have you seen the old man in the closed down market,
Bb               F               G7      C7 
Kicking out the papers with his worn out shoes?
F               Am              Dm               F
In his eyes you see no pride.  Hand held loosely by his side,
Bb           F             C7           F
Yesterday's paper telling yesterday's news.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

CHORUS

                        C7         F
     So how can you tell me you're lonely,
             G7                             C      C7
     And you say for you that the sun don't shine?
     F                      Am                Dm          F
     Let me take you by the hand and lead you through the streets of London,
     Bb            F             C7                   F                                            
     I'll show you something to make you change your mind.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\


F                 Am              Dm         F7
Have you seen the old girl, who walks the streets of London
Bb          F              G7        C7 
dirt in her hair, and her clothes in rags?
F                 Am                Dm             F
She's no time for talking, she just keeps right on walking
Bb           F        C7          F
Carrying her home, in two carrier bags.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

CHORUS

                         C7         F
     So how can you tell me you're lonely,
             G7                             C      C7
     And you say for you that the sun don't shine?
     F                      Am                Dm          F
     Let me take you by the hand and lead you through the streets of London,
     Bb            F             C7                   F                                            
     I'll show you something to make you change your mind.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

F                Am        Dm           F7
In the all night cafe at a quarter past eleven,
Bb       F           G7           C7 
Same old man sitting there on his own.
F              Am             Dm         F
Looking at the world over the rim of his tea cup,
Bb               F             C7            F
Each tea lasts an hour, then he wanders home alone.


/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

CHORUS

                         C7         F
     So how can you tell me you're lonely,
             G7                             C      C7
     And you say for you that the sun don't shine?
     F                      Am                Dm          F
     Let me take you by the hand and lead you through the streets of London,
     Bb            F             C7                   F                                            
     I'll show you something to make you change your mind.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\


F                 Am              Dm           F7
Have you seen the old man outside the seamen's mission?
Bb            F              G7              C7 
Memory fading with the medal ribbons that he wears.
F                Am             Dm            F
In this lonesome city the rain cries a little pity,
    Bb                 F               C7           F
For one more forgotten hero in a world that doesn't care.


/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

CHORUS

                         C7         F
     So how can you tell me you're lonely,
             G7                             C      C7
     And you say for you that the sun don't shine?
     F                      Am                Dm          F
     Let me take you by the hand and lead you through the streets of London,
     Bb            F             C7                   F                                            
     I'll show you something to make you change your mind.
                                        
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
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