This is an antique J. H. Bunnell & Co. Mainline telegraph, marked 30. There appears to be a old sticker paper label on the bottom that has fallen off with time and use. Also, it is marked by the dotter Legless Key. There have been newer screws put in place of the original ones on the bottom of the telegraph wooden board. It measures 5 1/4" tall with a wooden base of 8 3/4" wide by 5" deep.