This is a 3D postcard that shows the kalesa or calesa or karitela. The calesa is a horse-driven carriage used in the Philippines and was one of the modes of transportation in the Philippines that was introduced by the Spaniards in the 18th century that only nobles and high ranked officials could afford. They are rarely used in the streets nowadays except in tourist spots (Vigan, Intramuros, etc.).
M24: Calesa Postcard
The back of the postcard reads:
Calesa - With a lady passenger in Filipina dress at Fort Santiago, Manila, Philippines
However, if you look closer, the calesa does not have any passenger behind the driver. The ruins behind the calesa is part of the Jose Rizal Shrine in Fort Santiago.
SOURCE:
Kalesa Wikipedia Entry