AHM GP-18 AT&SF HO

For those who do not know what the initials stand for. AHM is the maker, GP-18 is the type of locomotive, it is road switcher made by EMD (the full-size ones). AT&SF better known as Santa Fe. HO being HO Guage.
Two of these are dummy locomotives and one powered unit. Generally only one powered unit is used for model trains, the dummies are for looks as almost every train has at least two locomotives.
These were made from 1959-1963 and everyone loves a high hood unit!