It actually does say "single use". Under the Hobby Town sticker/barcode.
and up in the right corner after "primary use" it says single stage.
so, a single stage, single use motor.
The instruction sheet is for E16-F40-G64 W's , I can see the thrust curves for those motors on your instruction sheet.
You must have run that image though your FBI image enhancing software or you have a HAL9000, good eye! Either that or I am just getting old and going blind.
What is WL?
It almost looks like someone had a single reload left from a pack of three and stapled the top card from a single use motor onto it, perhaps without realizing. That would explain the two copperhead tubes.
Steve Shannon
I've never seen 29mm. reloads sold in any way other than a single load. To end the mystery it would be nice if the OP would question the person he bought it from. Guess we'll never know otherwise. Once OP receives it if he can take a pic. of the propellant grain, should be easy enough to identify it.