This is the seal sticker [Olive] produced by KNOTEN LETTERPRESS, which produces paper goods with motifs of stars, plants and animals, and things around us.
The word knoten means Knot in German.
They produce very high quality paper goods, paying particular attention to the quality of paper and ink.
These seal stickers feature a fresh design of an olive tree.
Please use them for your letters to your loved ones.

4 Sheets (Total12 Stickers, 3 stickers x 4Sheets)
Sticker Sheet Size: 3.5cm x 10cm