This plexiglass electric Telechron clock appears to have been given to someone on the field. Plaque on top of the clock reads, "50th Anniversary Yankee Stadium, American League, Sept. 8, 1951". Best of all, it still works great! Back of the clock has alarm setting where you pull a piece out or push in to set the alarm. Two separate pieces get turned to set the alarm time and to set the actual time.