Vintage Fisher Price Original Little People Farm

Based on the research I have done, this is a 1987 Little People farm set. It is a used set, but in relatively good condition. Through more research I found that many of the pieces are there, yet missing ones include: horse with its harness and cart, dog, sheep, and rooster. There is slight internal water damage which is shown by the picture. However, all of the four original people are included, as well as some extras. Part # 2501.