Speculum with secondary bills

he disclosure relates to methods and apparatuses relating to a speculum. The peculum includes a handle, a first bill and a second bill, where a proximal end portion )f the first bill and the second bill are coupled to an upper portion of the handle and :onfigured to open along a first axis, a third bill and a fourth bill, where a proximal end )ortion of the third bill and the fourth bill are coupled to the upper portion of the handle and configured to open along a second axis substantially orthogonal to the first ixis and an actuation mechanism that causes the first bill and the second bill to move >etween an open position and a closed position. In some embodiments, the speculum ncludes a locking mechanism with a rocker mechanism, a lock strip contained in a handle of the speculum, and a pawl coupled to the handle.