This cover is the Cover Image for the 1988 Western Cover Society Vol 48, No 2 and is discussed on page 6.

10c Green tied by target, with "Oro Fino, Cal." postmark on Multicolor Waving Flag Verse patriotic cover with small staining, otherwise Very Fine.

"Our Flag
And long may it ware, as it ever
has since it
was first unfurled,
unsullied and triumphant."

This rare flag design may have been printed by the firm of Anton Roman, a printing and publishing firm in San Francisco.