Here is a link to a blog about The Most Beautiful Old Pubs In Central London:
1. Argyll Arms
18 Argyll St SoHo
2. Dover Castle
43 Weymouth Mews
3. The Windmill
6-8 Mill St Westminster
4. Dog & Duck
18 Bateman St Westminster
5. Cross Keys
31 Endell St Camden
6. The Lamb
92-94 Condwit St Camden
7. The Blackfrier
174 Queen Victoria St
8. Jerusalm Tavern
55 Britton St Islington