I don't understand the line I highlighted in blue.
You are bidding on the sketch card by Smokin Joe numbered #162 of 300, the corresponding numbered Certificate of Authenticy, numbered wrapper, Runts Bonus Card, 5 postcards and full set of artist Bio cards! This is a great sketch because it references the puzzle, technically not a puzzle piece but the sketch lets you know the puzzle existed!! Because 1/2 of the original shipment were lost this is technically a sketch card from Series 6 B, once the cards were lost Topps commisioned new sketches and changed the coloration on the sketch card, certificate and postcards, so this is in a way a limited Edition of 150!! All items are BRAND NEW MINT SHAPE, only removed briefly to take photos and then the certificate and all cards were placed into protective top loaders for protection! This series of postcards sold out in under 3 hours, this card features a sketch by Smokin Joe of CapN Moron.
edit - I love "coloration"
My guess is that this is simply a Capt Moron sketch by Smokin Joe that states there is a puzzle. It's not part of the puzzle but simply references it.
From what I read on this forum, he only did 1 puzzle which consisted of 4 pieces and none of them were lost in the postcard 6 missing batch. It also states that all 4 puzzle piece owners are identified, but I don't know if anyone is making an attempt to acquire all 4??