Found queen-size duvet cover set with blue stripes

I found a queen-size duvet cover set this afternoon around 3:15pm outside the entrance of the St George Library on Main Street. It’s a SunNest white cotton duvet cover with thin blue stripes and comes with two matching pillow shams. There’s a small coffee stain near the bottom hem and an embroidered initials 'MR' on the inside seam. The fabric looks clean and in good condition otherwise, and I figured someone might be missing it after a quick laundromat run nearby. If this belongs to you, tell me the initials and the stain detail to confirm, and I’ll bring it to the library desk for pickup.