So I found out about these a couple of months ago. I thought they were pretty neat and just had to have one to put in my collection. I happened to come across one on eBay and so I scooped it up. It arrived in the mail today. I have to say, it's a pretty neat little flip. They pre-date PCGS is about all I know of them. I thought I would share it on here with you fellow coin geeks. If anyone has more information on these David Hall flips, I'd sure love to hear about it. @Paddy54 from what I can tell it is a 1938-D Buffalo WRPM-012.
Yes, he was one of the founders and this was a precursor to PCGS. It's one of the reason's I jumped on it. It will go nicely with my ANACS Photo Cert.
While they might be a neat collectible, I think it's a pretty safe bet that David Hall wishes he'd never come up with that particular idea. For by the early 1990's there was a huge lawsuit against PCGS the outcome of which forbade them from ever touting coins as investments again.
Yes, well it's smaller and thinner than an airtite. It's a thin plastic shell that protects the coin from the PVC flip. I have an old ANACS photo cert with a Mercury Dime. The Dime is in an shell that is very similar. At least they knew not to keep them in the PVC flips unprotected.
Some more info from David Hall himself (circa 2003 via the PCGS forum): "What you have is the beginning of the PCGS idea. In 1982, DHNIG started making a market in a wide range of coins and guaranteeing to buy back any coin we sold at a price comensurate with the grade. We guarantee to always have a buy price for every coin we sold. It was quite a revolutionary idea for the time (one major dealer who is still active told me at the time that this was impossible and we would go bankrupt...what happened was that he went bankrupt!) We sealed the coins to be sure they wouldn't be switched. This idea was expanded to include sonically sealed holders and coins from other dealers inventory not just DHNIG, i.e. this idea was expanded into PCGS. There are several looks to these sealed holders. The first ones were circa 1982, the last ones were probably from 1987. You have one of the later models. We did well over $50,000,000 worth of coins this way. I believe the majority of them were turned into PCGS for grading by the DHNIG customers shortly after PCGS was launched. Most of the coins we sold as MS65 will grade MS65 or 66 at PCGS today. A few grade lower, a few grade higher." https://forums.collectors.com/discussion/196196/conder101-david-hall-slab
Kointains were what most back in the day used to store their coins. I still use them on my raw nickels