Went to a local auction house yesterday and 'one' of the lots they had were five packages of Washington one dollar bills cut into sheets of four. Each was in it's original mailers from the mint and orders to get more from the mint. I think a nice fine. Each sheet is in excellent condition. Now, question, leave them the way they are or should they be placed in a hard plastic protective sleeve ?
Love me some 4-subject sheets. I have many, so I invested in an archival safe art portfolio which holds most of my 4-subject sheets. If you don’t have too many sheets, just keep them in the OGP. They’ve survived fine for over 30 years, they’ll be fine like that. Try not to handle the sheet unless necessary. Are all the sheets the I-C block ? Any interesting serial numbers ?