5/8 (11/16) Otto Deutsch with round point. It had no hone wear but rust ate 1/32'' of its edge in middle of the blade. I restored its keenness with King 800 and BBW/Coticule combo and am going to shave with it tonight. :D It cleaned up quite nicely except for a few stains that look worse in the picture than in reality.
http://lh6.ggpht.com/_S6Qq2M8hM4g/SY...0692_small.png