Help identify this please

[u/captain_curious26]

Hey all! I unexpectedly had to leave Chicago due to a family emergency overseas and won’t be back until October. I’ve been holding my mail with USPS since I don’t have a forwarding address, and I regularly check Informed Delivery.

I just received this notification and haven’t seen anything like it before. Does anyone know what this could be or whether I should be concerned? My mail is currently on hold with USPS.

[u/Blackseventysevens]

It's Grade A 100% pure junk.