The WDM-2 Stamp Overview
- Denomination: 25 Paise Indphila.com
- Subject: The ALCO-designed WDM-2, which was manufactured domestically at the Diesel Locomotive Works in Varanasi.
- Significance: At the time of release, it was the most widely used mixed-traffic broad-gauge diesel locomotive, hauling roughly 56% of freight traffic and key mail/express trains http://www.indianphilatelics.com/stamps/commemorative-stamps/1975-1977/item/3812-indian-locomotives-click-for-stamp-information.html.
- Specifications: The stamp highlights its 2,600 horsepower, a weight of 113 tons, and its capacity to pull freight trains up to 2,250 tons or 18-coach mail trains http://www.indianphilatelics.com/stamps/commemorative-stamps/1975-1977/item/3812-indian-locomotives-click-for-stamp-information.html.
- Collectibility: These stamps are highly sought after by philatelists as blocks of 4 or traffic light blocks.




