Tongue depressor used to prevent mail tube from rolling around when scanned.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...r_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net..._depressor.jpg
Previously:
https://www.homemadetools.net/forum/...497#post147104
https://www.homemadetools.net/forum/...710#post174704
https://www.homemadetools.net/forum/...392#post161918
https://www.homemadetools.net/forum/...781#post133201
https://www.homemadetools.net/forum/...674#post136585
