Expired Paper - Lumen Print

I had some fun today making a lumen print in the sun with some expired paper.

I used a positive print on transparency of a digital photo I had taken. Then, I contact printed it in the sun between two sheets of glass for one hour. I scanned it before fixing in normal B&W fixer. The fixer faded it quite a bit.

Now I am very excited to try some expired 120 roll film and expired 4x5 sheet film. I read in Jill Enfield's Guide to Photographic Alternative Processes (highly recommended) that these prints can be developed in half an hour up to days or even weeks!