The first document that discusses this says they were sold, and returned. I have not double checked the dates of when NRA sales resumed on the M1917 after WWII, but I have that documentation. My memory RIA was gearing up for the sales of the M1917's to the NRA members again. That is why they looked at the receivers and were asking for clarification.
So otherwise this 26,000 shipment that was returned, had to most likely be going to another country.
What are you trying to figure out from the above two documents I posted?
IT's a report that is 30 pages long and details the politics behind the shipment, how they ignored some laws and shipped them fast. It looks like they bent the rules as they weren't legally allowed to do it officially until March 1941. But they state it was an emergency under dire circumstances. So they did it. A quick looks thru it looks like it was ordered by the President on Feb 5, 1941. It was for 250,000 M1917's and 50,000,000 rounds.