Looking for help reading a Norwegian Birth record

Hello, is anyone able to help me translate/ decipher the birth record of my great- great grandfather? His name is Gustave Alfred, I am not sure of his last name. The translation says his father was Gustave Lunmar but that last name does not appear anywhere else so it may be a mistake. He can be found on the first entry of this page—- https://media.digitalarkivet.no/view/6551/162 Thanks so much!