Larger chain so I believe it is a piece of. The item "Vintage Stihl Contra Lightning Saw Chain Case Embossed Buck Logo Lot Read Desc" is in sale since Monday, September 20, 2021.
This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Outdoor Power Equipment\Chainsaw Parts". The seller is "chainsawfun" and is located in Cazenovia, Wisconsin. This item can be shipped worldwide.