These "TEKS" cards were printed for a short period and were based on the popular movie or TV series at the time it was printed. They were sold in "sari-sari" stores or by ambulant vendors near schools because kids could not resist playing with them. These cards were crudely made and printed on cardboard. Like comics on cards, each card is meticulously drawn by a Filipino illustrator and were numbered from 1-60 or more to complete a storyline.
These could be traded, or played in a toss-up like manner by kids. The game relies heavily on betting which side will come up, and is decided by flicking the teks in the air. Players usually favor a specific card to use as the cards they'll flip while all the other cards are basically act as betting currency.
These cards were made in the 1970s up to the early 1980s, it measure approximately 35 mm x 46 mm. The 1960s card are a bit bigger and measure 50 mm x 68 mm. Teks are well loved by the children and very seldom would survive. I was lucky that I was able to save some of them from my childhood days.