Someone's Art Project

Someones recent antique purchase, courtesy of The Great War Forum. One of the infamous "Ration Biscuits" re purposed as a picture frame. It's wrapped in newspaper from 1916 and appears to have been made, then bundled-up and forgotten about.
The lads evidently enjoyed this activity as others have also written about the efficacy of hardtack as art material.
It could serve as stationery as well. A tale told in one of Lynn McDonald's war histories was of a young soldier, fed up with the rations.
He wrote on the surface of a biscuit; "They tell us that they need us but this is how they feed us", stamped it and mailed it home.
He received company punishment for this offense but not for complaining about the chow. It was only because he'd posted it at a civilian post office - and apparently the biscuit made the trip okay.
About the redoubtable biscuit, Private Pressey of the Royal Artillery had this to say;
"[They were]... so hard that you had to put them on a firm surface and smash them with a stone or something. I've held one in my hand and hit the sharp corner of a brick wall and only hurt my hand... Sometimes we soaked the smashed frqagments in water for several days. then we would heat and drain, pour condensed milk over a dishful of the stuff and get it down."
From Eye-Deep In Hell by John Ellis.