The postcard shows another oil painting by Fernando Amorsolo entitled Tinikling. I couldn't find additional information about the painting nor its location (private collection or museum).
Tinikling is a dance from the Philippines. It originated in Leyte as an imitation of the tikling bird dodging bamboo traps set by rice farmers. Tinikling involves two people hitting bamboo poles, using them to beat, tap, and slide on the ground and against each other in coordination with one or more dancers who step over and in between the poles in a dance.
In the United States, tinikling is taught as part of physical education class in many elementary schools. It is a form of aerobic exercise that also improves spatial awareness, rhythm, foot and leg speed, agility, and coordination.
Tinikling Wikipedia Entry