Mountain Locomotives - DHR B Class --- The scenic Darjeeling-Himalayan Railway line having a two feet wide track, conceived by Franklin Prestage, the agent of the Eastern Bengal Railway, links Darjeeling to Siliguri, a distance of 87.48 Kms. The alignment passes through hills and gradually climbs up to the maximum altitude of 7,407 feet at Ghum. There are 4 loops of which the most renowned one is the Batasia loop, 5 reverses in the shape of 'Z', 5 major and 498 minor bridges and 177 unmanned level crossings on the section. About 89% of the tracklength is on curves, the sharpest curve having a radius of 59 feet. The stamp depicts 0-4-0T 1889 make B class steam locomotive still in use in this section. Issued on 16th April 1993 with denomination 600p (₹ 6/-).