Here at TBTP World Headquarters we spend way too much time reminiscing about books bought, sold, and collected over the years. This inevitably leads to uncomfortable regrets about the items passed over at book sales, sold below the actual value, or not sequestered for the personal library or collection. Occasionally, a book buyer, or in this case a TBTP follower, brings up a sore topic.

So, first a big thanks to reader Sandy R. who remembered my map geek interest in transit maps and shared copies of the very early London transit maps pictured above and below discovered online. However, this is where the regret comes in. Some years ago, I sold my copies of very similar late 19th and early 20th century London maps along with a group of London travel guide books to a UK collector. In retrospect, not only did I under price the maps at the time, but would really like to have them in my own collection now.