PU-2 (entity_id = 184): The upper three dating points (dating_id = 2723, 2724 and 2725) and the respective interp_age do not reproduce the figure from the paper. The author has been asked for help but this question has not been answered in a satisfying way. The sample was collected in 1977. In the original paper, the model was linear but the data the author provided was obtained with a linear between dates model.