An employee of the TSBD is just a member of the public but even if they're not, the DPD don't have to fake a document to impress an employee of the TSBD. It doesn't make sense.
They're not trying to impress the employee but to show them documentary evidence that will satisfy them that the matter has been looked into and there's nothing to see here. This witness, if not satisfied, could go public and cause a MAJOR headache.
And I don't believe the original form is fake: it records the submission of two curtain rods 3/15, their testing negative for Mr Oswald's prints, and their release 3/24. They were never seen again.
However...
...this does make sense, to a large extent, but there's still a lot of uncertainty:
Why do two curtain rods come in four pieces?
Each rod extends out.
Is there any other evidence that the rods were found in the TSBD other than Fraziers' mystery caller?
The "Crime Scene Search Section" document is evidence. I can't think of any other location where the finding of two curtain rods would require testing for Mr Oswald's prints.
How is Rankin's letter to Hoover tied into this?
Panic at the highest levels over curtain rods at just the time two curtain rods are submitted for testing for Mr Oswald's prints!
Why the change of release date by Day?
So that the public version will have a release date post-3/25 (the date the Paine rods were tested)?
At the very least you've demonstrated corruption in the processing of evidence but it would be satisfying to have an interpretation of the various documents that didn't leave so many tricky questions.
PS: What is the latest doc you posted?
Lt. Day's print card for one of the rods