o Washington"), to John Armstrong (1717-1795), Mount Vernon, 25 April 1788. 4o, 7 pages on two bifolia (9 x 7 3/8 in.). Professionally conserved: two horizontal folds neatly reinforced, slightly obscuring some text, light dampstains to page [4], left-hand margins of pages [1] and [4] with narrow strip from old mount. " /> WASHINGTON, George. Autograph letter signed ("G:<SUP>o</SUP> Washington"), to John Armstrong (1717-1795), Mount Vernon, 25 April 1788. </I>4<SUP>o</SUP>, 7 pages on two bifolia (9 x 7 3/8 in.)</I>. Professionally conserved: two horizontal folds neatly reinforced, slightly obscuring some text, light dampstains to page [4], left-hand margins of pages [1] and [4] with narrow strip from old mount. | Christie's