There are a couple of BHE-Grade .410-bores known, but the records for those serial numbers are not available. Actually a Remington era IBM card for one of the numbers exists, but it says that number is a DHE-Grade?!? Probably a decade ago the concensus among the Parker heavy hitters was that the card was a Remington clerical error and that the gun was rightious.

When I was a teenager I handled a long-barrel BHE-Grade .410-bore with vent-rib set up like a trap gun at the Safari Room at Frederick & Nelson department store in downtown Seattle. That was long before I was into recording serial numbers and detailed info.