See this link for the first video…

Here is one more video containing footage of Kalimpong (and Sikkim and Darjeeling) from 1957.

The videos are from the Museum Archives of the University of Pennsylvania Museum of Archaeology and Anthropology. They were recorded by a Watson Kintner who along with his 30 mm camera, travelled all over the world and his recordings give us a never before insight into the sights of history. (Unfortunately there is no sound recorded with any of these videos)

Much thanks to Mr. Deepak Dewan for pointing me towards these archives (via the Kalimpong Facebook page).

The shotlist, according to the archive webpage is:

Cat. Reel 113 1957: Reel 9: Kalimpong, Gangtok. March 8.
Kalimpong, India; Gangtok, Sikkim.

Crude hut of branches and leaves.
Charcoal making.
Bridge to Sikkim, people and camps.
Dance – Tibetan.
Crowds at monastery.
Priest “stamping” people. (mws).
Priest and prayer wheel.
Market place.
Man with monkey.(xcu).
Camping.
Priest counting beads. Road scenes.
Making “doughnuts.” (cu).
Barber. (ws).
Dentist’s tools.
Road.
Trident, held with man.
Inside monastery, (fairly dark).