Sample formal dinner invitation letter to friend on anniversary Article shared by: Mr. and Mrs. …………………… requested the pleasure of your company at diner on the tenth Anniversary of their marriage on Tuesday, ……………………(date) at eight o’clock at ……………………Name Image source: img1.etsystatic.com/000/0/5729284/il_fullxfull.303874423.jpg HomeKnowledge HubLetter Related Articles: 6 Sample Formal and informal invitation letter to your friend on auspicious occasion of the wedding