In the 1980s , EFSI became known for its HO scale truck and bus lines .
Many Efsi dies were made by a company in Portugal , though models themselves were made in the Netherlands ( Efsi - toys 2006 ) .
In the 1980s , EFSI became known for Efsi 's HO scale truck and bus lines .
Many Efsi dies were made by a company in Portugal , though models themselves were made in the Netherlands ( Efsi - toys 2006 ) .