Shell is a subtheme of Town that was introduced in 1999 and currently consists of 5 sets. All sets were released in 1999. As of today, the average annual growth of all the sets in Town Shell is around 4.4% per year. The current value of all sets in new/factory sealed condtion is $243.31.
Most valuable LEGO Shell set 1252 Shell Tanker - $78.79
Largest LEGO Shell set1254 Shell Convenience Store - 159 pieces
LEGO Town was one of the LEGO Group's core themes which was based on town life and included sets such as emergency services like police and fire and civilian sets such as cars. LEGO Town incorporates many subthemes, which focus on a specific area of Town such as airport, artic, city, divers, flight, rescue, space and various others.