The Yellow Claw first appeared in [Yellow Claw (Marvel, 1956 series) #1][13132] (October 1956).
His first appearance in the Marvel Universe was in [Strange Tales (Marvel, 1951 series) #160][21289] (September 1967), where his hand was seen on a viewscreen and later his voice was heard through telepathic transmissions.
His next appearance was in [Captain America (Marvel, 1968 series) #164][26530] (August 1973).
In [Agents of Atlas (Marvel, 2006 series) #4][321857] (January 2007), he indicated that his title is actually The Golden Claw, and that the name "Yellow Claw" is racist.
He died in [Agents of Atlas (Marvel, 2006 series) #6][321859] (March 2007).
[13132]: https://www.comics.org/issue/13132/
[21289]: https://www.comics.org/issue/21289/
[26530]: https://www.comics.org/issue/26530/
[321857]: https://www.comics.org/issue/321857/
[321859]: https://www.comics.org/issue/321859/