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c550W
- Wolverhampton, Brierley Hill and Kingswinford Exchanges 102 words
- Whitehall 6240 97 words
- Vandalism (East Suffolk) 46 words
- Call Offices, London 113 words
- Public Telephones (Putney) 112 words
- Greyabbey Exchange, County Down (S.T.D.) 52 words
- Bangor—Belfast Calls 56 words