I asked Roy this question - his response was....
"Dennis, I would gladly share them if I had them, but I did not have them and the serial numbers were not listed on the invoice. I might be able to find the K-38 as it could be near your revolver, but the others I would have a tough time finding. Roy"
Then an hour later he sent me another email - Dennis, since I knew the date and understand the serial numbers fairly well, I took a shot at finding them. So luck was on our side. The K-38 was the hardest to find, K-38 serial number K4639; the .357 Magnum S71352; and the .38/44 Outdoorsman S71794. So now you have all four of them and if you want go ahead and put them on the forum. Roy
So these three guns and my K-32 all shipped to E. F. Warner, Publisher of field & Stream Magazine, Madison Avenue, New York City, NY.
I LOVE this kind of data! Thank you, thank you, thank you Dennis and Roy.
Based on known configurations of early K-38s, there is about a 50-50 chance that K4639 is a LERK model.