Adams & Co., Sacramento, Express. Bold red stylized rope oval handstamp with matching red "Paid" straight line on blue 1851 folded letter to San Francisco, Cal., with December 19th letter regarding the state of the whiskey market; filing fold, an Extremely Fine strike, quite possibly the earliest known Adam's cover with the current finest collection of Adams not having a cover prior to July 1, 1851. Estimate  $1,000 - 1,500. $0 (Image)

Adams & Co., Sacramento, Express. Bold red double oval handstamp with red "Paid" handstamp on blue folded letter dated December 25, 1852, to San Francisco, Cal. (letter with interesting postscript); file fold through mark, Very Fine. Estimate  $200 - 300. $0 (Image)