I know I haven't got three 20s... so, sorry, but I can't do a montage this time.
Check out my collection of dates and numbers here.
London has lots to see, and I don't mean the obvious tourist attractions – I mean the wonderful details that are all around us such as coal holes, old wall ads (ghost signs), doorway mosaics, boot scrapers, pub signs, street names, even letterboxes and door knobs. Please click anywhere within any image or group of images to view them at a larger size, or see my photos on Flickr by clicking the icon in the left hand column.

Clockwise from top left:
Top Row: Twelve Pins pub, N4 / The Old Dairy, N8 / Blackstock Road, N4 (x2)