1 KudoZ points awarded for this answer. Comment: "Thanks everyone. I was never really sure about this one. We established that "Lesefunde" is the matching technical term for "stray finds", which are roughly finds which are not archaeologically recorded but just picked up. That didn´t solve this one, though. Kim´s Lesesteinmauer was interesting, suggesting to me it might mean stones collectd for their suitability for building into a wall, i.e. selected by the Romans, but I actually used "collected stones", thinking that, analagous to the stray finds, they are stones collected by later generations without archaeological control. It can´t be too bad, the archaeologist sent a message saying he was very happy with the translation :-)))))"