You've probably seen the Lefever G Grade 12 gauge restored by Bachelder that has been listed on Gunbroker for quite a while. It now has a very optimistic starting bid price of $4000.00. I think it started out at an even more optimistic $6000.00. It is a cased two barrel set, but the second set of barrels is cut to 24", and honed out. This is another one that will be listed forever unless the seller decides to face the reality that it is vastly overpriced. I think you'd be very hard pressed to get that much for a restored 16 gauge E, and the Lefever 16 gauge production numbers are much lower than 12 gauge.
https://www.gunbroker.com/item/787959564I can't help wondering why Bachelders did not remove the number 34 stamped into the wood behind the grip cap during the restoration of your 16 gauge E Grade? It would seem that a bit of steaming along with minimal sanding could have eliminated that blemish completely. There must be a story behind that.