Now, here's an unsold pilot that didn't come from any of the known animation studios in the 60's.
Black, Kloke, & Dagga was a spy spoof that sprang from the mind of actor-comic Morey Amsterdam (ex-The Dick Van Dyke Show), who had done some voice work for UPA earlier in the 60's (i.e. "Gay Purr-ee" w/Judy Garland and Robert Goulet). The animators for this pilot weren't credited (JKL Productions was Amsterdam's production company; the name has been co-opted by another party in more recent times for reality television), but certainly had a familiar look, as if it was from either Rankin-Bass or Jay Ward.
Amsterdam voices Dagga, the smaller of the two spies. His partner, Kloke, tall and simple minded, is played by Stan Irwin (The Abbott & Costello Cartoon Show). Zsa Zsa Gabor voices the villain, Madame Black.
Many thanks to Mike Kazaleh for unearthing this lost toon. Kazaleh posted this to YouTube about a year or so ago.
Amsterdam would later try again as a producer, this time involved with Four Star's short-lived revival of Can You Top This?, just three years later. He's clearly mocking the fading Man From U.N.C.L.E. with Kloke, given the setting. He'd have been better served getting help from Jay Ward with this one. The spirit is there, but the script is weak.