I sent John Dunkle a PM requesting the above mentioned action.
Bob Jurewicz

I must say, this is nothing that would even be on my radar as I'm not a numbers guy, but seeing the passion in your posts and the desire to find the exact numbers behind the repro guns is truly heart warming! Nice to see you guys getting the ball rolling on this project, I hope enough collectors chime in and add to the list and that someone who was close to the Skeuse project might even be able to shed more light on the numbers and keep "matriculating the ball down the field". This might even make a neat Parker Pages article, "The Quest for the Repros". Just sayin'.

It would be nice if thru this thread we could also unravel the mystery of the "P Guns", those with serial numbers prefaced with the capital P. Maybe in addition to the information requested by Greg we could ask members who own such guns to contribute info on their characteristics.
I own P-00415 it is a 20 GA DT, PG/SPLT with 14 15/16" LOP and two (2) sets of 16 GA barrels all housed in an original Repro Leather 3 barrel case and cover.
Bob Jurewicz

I would like to see some owners of #0000 frame .410s to come forward with their serial numbers.

If what David Trevallion reported in his featured article "A Parker Repro Collection - A visual feast of rare smallbores" that appeared in the Jan/Feb 2021 issue of SSM is accurate, one collector (I think we all have a pretty good idea who that is) owns 11 of the reported 41 .410 Parker Repro smallbores ever made. If this one collector came forward with serial numbers of his 0000-frame .410 collection, it would go a long way in answering your request.

I would assume there are many DHE 00 frames with 28 and .410 barrels with the .410 barrels installed later. Maybe all such sets have .410 barrels installed later. My assumption is that many of the total 28 gauge production was before the first .410 barrel set was made. Only Mr. Skeuse could tell us how far along 28 gauge production was before .410 barrels started to become available. If we knew that number, we could at least guess whether a gun was an original 28-.410 set and which ones had retrofit .410 barrels.

...and then there were two...or were there three?

Robin Hollow Outfitters has recently listed two Parker Reproduction BHE 28/.410 bi-gauge sets on GI that appear to be original-from-the-factory little jewels S/N 28-0026 and 28-0030. Prior to this listing we thought there was only one in existence. Never say never.

In conjunction with the above BHE 28/.410 bi-gauge sets Robin Hollow has also recently listed two Parker Reproduction A-1 Special 28/28/.410 3-barrel sets, S/N 28-036 and 28-047. There hadn't been any listed in the old production chart. Any 3-barrel set is an extremely rare bird, here are two of them:

And the price they're asking is on par with an original

Is Mr Skeuse still alive?