Yes: AFAYK! 
An excellent place would be the small storage room on the first floor, just off the vestibule. Which is exactly where Mr Ochus Campbell was telling the press Mr Oswald was seen just after the assassination!
Well, that wouldn't set off any alarm bells in Mr Oswald's head now, would it? 
Let's assume that Lee was carrying a 27 inch paper sack that was constructed of "flimsy", "crinkly", brown paper.... He would have wanted Frazier to see that long sack because the script of the play in which he was the star performer.....called for a witness who could tell the press that he'd seen Lee Oswald carry a long sack that morning. However He didn't want the entire work crew at the TSBD to see that sack.... Because it wasn't long enough to have contained a rifle..... and that's what the script called for .. It was supposed to appear as if Lee had carried a rifle ( the carcano) to work that morning. But nobody at the TSBD saw him carry a long sack into the building....
Therefore he must have quickly hid the sack on the loading dock out of sight of Frazier and before he entered the building. He told Frazier that the 27 inch sack held curtain rods, and indeed it could have held curtain rods. ( Any debate about his room needing curtains is irrelevant ) Thus Lee had succeeded in carrying a parcel that could be mentally expanded as big enough to contain a rifle.
An aside and a Personal Comment:.... I have always been befuddled WHY the "investigators" immediately jumped at the absurd idea that Le carried the rifle to work in a paper sack. From the first time I heard that theory, I thought it was ridiculous... I now believe the reason the police jumped on the theory is because ..That's what the script called for.
It's possible that those curtain rods stayed where Lee had hidden them and weren't retrieved until long after the official tale had taken root...
Now thanks to Alan Ford....The story is starting to gel.... The investigators found the curtain rods and wanted to see if Lee had handled them....So they were sent to the DPD.
Lt Day ( one of the biggest liars in the DPD) said that he found finger prints but they were not Lee Oswald's, And in this case he might have been telling the truth. But the fact that the curtain rods were found at the TSBD completely destroys the tale that the conspirators invented... Lee told Frazier that the sack contained curtain rods....And sure enough the "investigars found the curtain rods that verified Lee's statement and utterly refuted the silly idea that the sack contained a carcano.
Thank You, Alan Ford....
