The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
London. Blackfriars Bridge. Series. No. 238
London. Blackfriars Bridge. Wyman Series. Real Photo Post Card
London. Blackfriars Bridge. Valentines Series
London. St. Paul Cathedral and Blackfriars Bridge. Excel Series. RP. 1936
London. Unilever House. Blackfriars Bridge. Excel Series. RP
London. Blackfriars Bridge. The Wrench Series
London. Blackfriars Bridge. The National Series. 1904
Blackfriars Bridge. Shurey Publications. Series of Fine Art Post Cards. 1914