Estate piece does not show signs of blade use in my opinion but shows a little 'carry wear'. I have not tried to clean this knife. You can see the obvious spots and discoloration on both sides of the ends. Made in the USA has 'Diligo quad Servo' scribed on one side of the blade. This knife is tight and snappy. Absolutely NO play in the blade both sideways or up and down. Knife will come in a makeshift velcro case. Please ask questions before bidding ...Thank You!