An extension for set number fourteen (14A) includes 214 stone blocks in three standard colors; brick red, natural sand, and slate blue. The Designs for Architectural Models booklet includes nine building plans for large and complex buildings including a country palace and a Renaissance pavilion. Packaged in a traditional wooden box with a packing diagram on the back of the lid. This expansion allows you to build some of the largest and most complex models. This set plus the combination for set #14 becomes the equivalent of set #16 and allows you to build all of set #16 models.