Forwarded by Everts & Co's Express, mostly clear express company marking in three straight lines with a fancy rectangular box, used with blackish-blue Marysville Cal. datestamp and matching '5', on blue Aug. 10, 1851 folded letter datelined at Nelson's Creek, semi-literate contents from immigrant looking for work, bleaching and small separation along file fold slightly affects markings, still intact and nearly fine, rare, possibly the only one recorded, an early use by this multifaceted expressman, illustrated in Nathan, ex Parker