 From 1983 to 1990 and 1991 to 1994, two new one peso coins were issued, the latter of a smaller size concurrent to the last four years of the series.The obverse now features the year of minting and a profile of Rizal faced on the right on the obverse.An image of Anoa mindorensis, or, ambiguously, tamaraw, an animal native to the Philippines, and the denomination, are all on the reverse.