You have been warned.

I pass this sign several times each week on my perambulations. A little research seemed to indicate that it was originally used by the Great Southern and Western Railway which I discovered was in Ireland.

However, further Googling has led me to believe that the sign may be a fake. Although the GSWR did use this sign it appears that in recent years someone has been making reproductions to sell to innocent collectors of memorabilia.

However on this blip you get something which is not a fake. Look closely and you will find three bits of Maidenhair Spleenwort growing in tiny cracks in the wall.