Panini America Reveals Specific Quantities of 2013 Contenders Football Base SPs

Over the last few months, we've offered glimpses into the relative scarcity of the base and insert SPs and SSPs found in Panini America's 2013 Contenders Football release. But collectors' collective desire to know the exact quantities of those cards has led to an influx of seemingly nonstop feedback via email, Twitter and The Knight's Lance. Today, we hope to…