With print on a very thin expired russian paper called Brom Portrait, I think so anyway. It liths like a dream and its very controllable. The blacks come in nice and slow and they never seem to block up. I purchased some slavich on eBay and the seller threw a pack in for free.
@Acere I believe you're right. When I made this lith that was the most important spot to get right so I waited to snatch it till i got a bit of contast on her nose. Thanks!