Class 4 LEGO® → System → Universal Building Set 338 (1, 2) << 340 (Set 2, Set 3, Set 4) >> 341 (1, 2) 340 Block House is a Universal Building Set released in 1968. It contains 72 pieces. External links Brickset Peeron See a price and investment guide on BrickPicker.com Categories: Class 4 articles Duplicate numbered sets Unknown Ages Unknown Price Sets with less than 100 pieces 1968 sets 0000 sets Universal Building Set