At the beginning of the first American troll fad, the most common and popular dolls were the standard Dam trolls. They stood just less than 3 inches tall (hair not included) and had brown or amber glass eyes. Most were naked, and many had either "DAM" or "©64" stamped on the backside. Occasionally, a circle with "DAM THINGS EST 1964" was pressed into the bottom of one foot. It is important to remember, however, that many Dam dolls were not factory marked from the early 1960's to the mid 1970's.
Above are three examples of standard 3-inch trolls. All of them have the classic brown eyes and have "DAM" embedded across their backs.