Builder Lewis Shaw, 24, shared a photo of the note, written by a young boy called David, on Facebook after discovering it while demolishing a fireplace in a house in Reading, Berkshire.
The letter, which Shaw believes is 60 to 70 years old, reads: “Dear Father Christmas, Please can you send me a Rupert annual, and a drum box of chalks, soldiers and Indians, slippers and any little toys you have to spare, Love David.” It is then signed off with lots of kisses.
Shaw was working with his colleagues when they found the letter in the rubble in a 1930s semi-detached house on Monday morning.
He spoke to neighbours on both sides of the house who have lived there since the 1930s.
They were able to give him David’s surname, which he typed into Facebook.
He said: “He now lives on the other side of Reading in Tilehurst and the local online paper Get Reading has arranged for us to meet him.”
Shaw is due to meet David and return his letter to him this afternoon.