Routes in Sikkim /
O'Connor, W. F.(William Frederick),Sir,1870-1943.
India.Quarter Master General's Department.Intelligence Branch.
Calcutta : Office of the Supt. of Govt. Print., India,
1900.
"The Intelligence Branch is now able to publish the "Routes in Sikkim" revised and brought up to date." -- Preface.
Two maps on 2 folded leaves in pocket.
"Authorities consulted": p. [2].
Sikkim (India)