Sailors swallow tattoo symbolizes 5,000 nautical miles sailed. The more swallows the more seaworthy the sailor
I have always loved the old school swallow tattoos. I only love them more after learning their history. For sailors they were a symbol of returning home safely. Swallows return home every year and birds in general are a sign that a ship is close to land. I also like how sailors would get them for every 5000 nautical miles or sailing the seven seas or other benchmark occasion
Never forget where to find Sherlock Holmes and his trusty sidekick, Watson. 221B Baker Street, that is.