Aberdeen Harbour Board: Letter from Alexander Ritchie, Gasbays Office Letter addressed to Alexander Reid, Harbour Office. Letter head: "Gas Light Cos' Office, 10th Sept 1839." Letter reads as follows: "Sir, the gas company have examined the service pipe which supplies the lamp on Regent Bridge and find that it will require to be taken up and re-laid. I am Sir, your most obedient servant, Alexander Ritchie." 10th September 1839