My first real fly box was a Perrine. I still have it. I'm not sure of the model, but it has a big plasic swing leaf to access the dry fly compartments and spring and clips on the lid. I used that thing for years. The other one has individual lids for the dry flys and all spring clips in the lid. Since the cliips won't hold flys smaller than #14, I had thought about replacing the clips with foam, but haven't gotten around to it.