U.S. 39 Star Flag - Unofficial.
Officially there never was an official 39 star flag. After Colorado's admission as the 38th state on August 1, 1876, the flag fabricators assumed that the Dakota Territory would soon follow as the 39th state. However, disputes within Dakota Territory over the location of the capitol city thwarted admission to the Union. The difficulty was resolved when Dakota Territory was divided into North and South Dakota, becoming the 39th and 40th states on November 2, 1889. In the interval, several flag manufacturers produced the unofficial anticipated version of the 39 star U.S. flag.

Thirteen horizontal, alternating red and white stripes, commencing and ending with red, field press dyed cotton. The 7 inches x 6.5 inches union/canton has thirty-nine stars 0.75 inches across, printed on the obverse and reverse sides set in six horizontal rows of 6-7-7-6-6-7.

A noteworthy flag from the Star Spangled Banner Flag House Collection.