A gratuitous pledge holder assumes the duties and liabilities of a gratuitous depositary.
§ 71-2-105, MCA
En. Sec. 3902, Civ. C. 1895; re-en. Sec. 5786, Rev. C. 1907; re-en. Sec. 8304, R.C.M. 1921; Cal. Civ. C. Sec. 2998; Field Civ. C. Sec. 1659; re-en. Sec. 8304, R.C.M. 1935; R.C.M. 1947, 65-113.