One of the most practical ways to store numismatic coins.
Cassette from German company SAFE, model BEBA MAXI with manufacturer's specifications here.
Includes 10 pieces of 4 x 4 drawers.
Piece used. Good condition with no damage and not strong signs of use.
Schematically shown in the attached photos.
This method of storage discussed by us in the video attached to the auction description.