Awning needs poles. Anyone recognize this type awning?

It is the silver version of this awning.  They were an accessory for the Dutchman T@Bs.  There was also a tent that used the same pole set and often the two parts are found separate - one without the pole set...  
 You might try looking/posting on this original T@B forum
https://groups.io/g/tabtrailers/topics
We really like ours...
Good luck!

2009 Dutchman Flower Power awning on our 2023 Ultimate Toys teardrop

That's the same design as the All Pro awning.  I would contact them and see if you can purchase the pole set for a 320.  The horizontal poles are adjustable, so those should work.  You may need to adjust the length of one of the hoop poles to fit your fabric.

Note, your awning is installed upside down.  The velcro tabs are on the bottom and hold up one end of the horizontal poles.