El Capitan - Yosemite National Park - Issued without Gum
Number 740 is the regularly issued perf 11 flat plate stamp, if the stamp has perforations it must be 740. The Farley reprint of this stamp is Number 756, issued imperforate without gum. Note that 740 and 751 are not Farley reprints.
The Farley special printing of the souvenir sheet, Number 769, was printed by the flat plate method, imperforate and not gummed and was issued as a full sheet of 120 stamps, with 20 panes of 6 stamps separated by 23 mm gutters. The souvenir sheet, Number 751, was sold as a pane of 6 stamps with the inscriptions in the margins as illustrated. The 769 example illustrated below represents two souvenir sheet panes. See the 3¢ Mt. Ranier Souvenir Sheet for an example of the souvenir sheet layout. Anything less than a full pane of 6 is given the suffix "a". Number 751/751a and 769/769a are distinguished by the presence of a 23 mm gutter in the latter. Finally, if the stamp does not include any marginal inscriptions or a large gutter it must be assumed to be the Farley reprint, Number 756.