This often refers to the year of release (2021) or a specific sub-series within the 40th collection.
Typically ranging from 50 to 150 high-definition images. ams bianka model set 40 21
For many, these sets represent a "time capsule" of a model's career. Set 40, coming later in a sequence, often shows a model at the peak of her professional confidence. This often refers to the year of release
While specifications can vary depending on the distributor, a standard "Model Set" from this era generally includes: coming later in a sequence