[Calaveras Grove] "Hercules prostrate 325 feet long 97 feet in circumference." Mammoth Trees, California, no number. N.p., n.d. Stereoscopic view card. Each image measures approximately 7.8 x 7 cm. On yellow card stock mount measuring 8.8 x 17.6 cm. Rounded corners, verso is plain, no imprint or title label. Probably published by E. & H. T. Anthony & Co. Small chip from lower left corner of the mount, very good. (#165092).