Archeologists from Keele University and University College London (UCL) used ground-penetrating radar and equipment to measure magnetic patterns in the soil to find the location of hut 122, containing the entrance shaft. Inside the tunnel was a lamp made from a cheese tin from a Red Cross parcel and a rubber stamp made from a boot heel, bearing a Wehrmacht eagle. Empty Red Cross milk cans had been used to make a basic ventilation system inside the tunnel. Read the full article.
I couldn’t find any photos, but if I do, I’ll post them or a link to them.