Myron H. Bond recollects that John Whitmer "saw and handled" the plates.
Myron H. Bond, Letter, August 2, 1878 in. Saints' Herald 25, no. 16 (August 15, 1878): 253
The work is of God, and not man; Joseph Smith was a true Seer; he did interpret by inspiration of God that heaven-preserved record, that is to bring Ephraim's children back to the covenant and to spiritual and temporal blessings; that blessed record that has saved me from infidelity; that has given us, my dear brother, so sure a foundation for our hope; that record of wluch, when I read and when I sing, the spirit of peace, of joy, and of truth bears abundant witness; that record which old Father John Whitmer told me last winter, with tears in his eyes, that he knew as well as he knew he had an existence that Joseph translated the ancient writing which was upon the plates which he "saw and handled," and which, as one of the scribes, he helped to copy, as the words fell from Joseph's lips, by supernatural or almighty power.