These are stone tools that I previously surface-collected with the landowner's permission in a field. Judging by the way they are broken, they have conchoidal fractures and are stone tool fragments and flakes. At this location, I have collected various items including arrowheads, stone axes, ornaments, obsidian, stone tools, and earthenware. They are from the Jomon period. It's rare to find these now, so even fragments are valuable. The excavation site is known and marked. Please examine the photos and make your judgment. I am fond of items from the Jomon, Yayoi, and Kofun periods and collect various pieces. This item is being offered for sale to organize my collection. Thank you. Please refrain from purchasing if you are overly concerned about details. For a smooth transaction, I would appreciate it if: - Those who are slow to provide feedback after receiving the item - Those with zero feedback - Those who prefer silent transactions - Those with many negative reviews would refrain from purchasing to avoid potential problems. (I am having trouble with people who are slow to provide feedback, silent transactions, etc.) If you still wish to purchase, please comment.