When a deed, mortgage, or other conveyance conveying real estate situate in two or more counties is presented for registration duly probated and a copy thereof is presented with the same, the register shall compare the copy with the original, and if it be a true copy thereof he shall certify the same, and thereupon the register shall endorse the original deed or conveyance as duly registered in his county, designating the book in which the same is registered, and deliver the original deed to the party entitled thereto and register the same from the certified copy thereof to be retained by him for that purpose. (1899, c. 302; Rev., s. 2657; C.S., s. 3554.)