Exposed, but undeveloped according to the above link. The CNN's story -- read the last sentence/quote to see that it was not included by someone knowledgable in photography;
"It's an exciting find and we are delighted to see them exposed after a century," Watson said.
Ah i posted a link discussing this same discovery. If you look at the official Antarctic trust site you can see the negatives frozen together in a clump. In another image you can see a technician peeling apart the stuck together layers in full light leading me to think these were developed already and just stored.
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links. To read our full affiliate disclosure statement please click Here.