The triquetra has been found on runestones in Northern Europe and on early Germanic coins. It presumably had pagan religious meaning and it bears a resemblance to the Valknut, a symbol associated with Odin.
G Scale Trains are usually referred to as Garden Trains since they are the largest of the model trains and are used outdoors as well as indoors.
1:36 scale - Popularized by Corgi in the 1970s, a common scale for toy vehicles seen as more properly sized for youngsters - such as models from Maisto, Kinsmart and Welly. 1:34 scale - Used almost exclusively by First Gear Models of the USA for their large scale diecast trucks.