The explanation with the original slide states that this rock fell between Thanksgiving and Christmas 1909. Its estimated weight is 5,000 tons - as estimated by "a Middlebury Professor." The slide was colored by Mrs. Perry and retouched by her on November 16, 1924.
King Rock. Estimated weight 5,000 tons fell between Thanksgiving and Xmas 1909. Estimated weight by a Middlebury Prof. 5000 tons. Colored by Mrs. Perry. Retouched by her Nov. 16/24.
Note [Digital Version]
2009-09-05, Center for Digital Initiatives, University of Vermont Libraries