We present angle-resolved core level photoemission studies of Na0.64WO
3(110)3 x 1. The spectra are interpreted in terms of a recent model wh
ich shows two facetted reconstructions present simultaneously at the s
urface. W 4f and Na 2p core level peak positions and intensities are i
nterpreted on the basis of the different local atomic co-ordination sp
heres within the model. (C) 1998 Elsevier Science B.V. All rights rese
rved.