Reconstructed GMSL for 1880 to 2009 as described in Church and White (2011).
The paper describing this is: Church, J. A. and N.J. White (2011), Sea-level rise from the late 19th to the early 21st Century. Surveys in Geophysics, doi:10.1007/s10712-011-9119-1. This paper is published "Open Access" and is available as a pdf: http://www.springerlink.com/content/h2575k28311g5146/