Kansas--Leavenworth City. Lot of (2) Clark, Gruber & Co. (and related) Checks.Included are: check on the banking house of Clark, Gruber & Co., Leavenworth City, Dec. 12, 1863, for $2500.00, Extremely Fine, the payee has not been entered, and the piece is signed by Samuel Hallett, president of the Union Pacific Eastern Division who, the following year, would be famously assassinated on the streets of Wyandotte, Kansas by his own chief engineer; and a $300 check of the less well-known Clark & Co. of Leavenworth, issued in 1869, after most of their business moved west to Denver. Both checks have a blue Internal Revenue Bank Check stamp on their face. Neither is cut cancelled, as are so many of the Clark, Gruber & Co. checks. The firm of Clark, Gruber & Co. is well known to numismatists on account of their private gold coins struck in Denver.