A remarkable specimen of this class is given in Fig. 5. It is made from the body of a large _Busycon perversum_, and is nine and a half inches long by three inches in width at the widest part. The concave surface has been highly polished, but is now somewhat roughened by weathering; the back has been slightly ground to take off the rougher ridges of growth; the edges are even and rounded and in many places quite thin. The peculiarity of its shape is such as to give it very much the appearance of the sole of a sandal. The perforations are three in number, one being near the middle and the others near the broader end, about one and a half inches apart; they are very neatly made and are slightly bi-conical and a little countersunk. There appears to be no evidence whatever of abrasion by use. It was found associated with human remains in a mound at Sharpsburg, Mercer County, Ohio. A similar specimen from the same locality is nearly nine inches in length, and lacks but a little of three and a half inches in width. As in the specimen illustrated, one perforation is placed near the middle and two others near the broader end. This specimen is highly polished on the broader part of the back, and is evenly smoothed on the concave side. It bears evidence of considerable use, and the two holes are much worn by a string or cord, which, passing from one hole to the other on the concave side of the plate, gradually worked a deep groove between them. On the back or convex side, the perforations show no evidence of wear. The central perforation is not worn on either side. The letter of Mr. Whitney, transmitting this relic to the National Museum, states that there were in the mound "about ten pairs of the shell sandals of different sizes, and made to fit the right and left feet." From the latter remark I should infer that some were made from dextral and others from sinistral shells; the two described are made from the _Busycon perversum_. An extremely fine specimen, much like the preceding, was exhumed from an ancient mound in Hardin County, Ohio. It was found on the head of a skeleton which occupied a sitting posture near the center of the mound. It is nine inches in length by three and one-half inches in width, and in shape resembles the sole of a moccasin, being somewhat broader and less pointed than the specimen presented in Fig. 5. It had been placed upon the skull with the wider end toward the back, but whether laid there as a burial offering simply or as constituting a part of the head-dress of the dead savage we have no means of determining. The perforations are three in number, and are placed similarly to those in the specimen illustrated in Fig. 5. Two other skeletons had similar plates associated with them, which differed from the one described in size only, the smaller one being less than six inches in length. Lithographs of two of these specimens are given by Mr. Matson, in whose very excellent report they were first described.[131]