Aloha All, Everyone has good points to share & hope it helps out Cari. I've seen some of Kevin's packed shells & he does know how to pack & keep them in near mint condition. Paul hit it on the head. Whatever you two decide upon that is agreeable to both parties is the best. There's no correct formula or science behind this. Perhaps a "gentleman's agreement?". I just purchased a +30yr complete Hawaiian collection that wasn't stored well. Bynes, use of normal paper, exposure to light was evident but included many rarely seen species like ostergaardi, burgessi, kondoi, hawaiensis, etc. But I bought this collection to be incorporated into my own Haw'n coll. Cari, you're request for guidance will show to the seller you're genuine intent on doing fair business. Good luck to you both. Mahalo! CHRIS