No ! As J. Edgar Hoover thought , there was no real evidence or pictures of LHO in Mexico at said time !
Mike,
If Oswald didn't go to Mexico City (and I agree with you that he didn't), then obviously he must have been impersonated over the phone down there, if not in person.
Since 5' 3.5" Sylvia Duran described the Oswald she'd dealt with as "skinny," having an "elongated" face, being about the same height as her, blond-haired, and blue (or green) eyed, and since her colleague Eusebio Azcue described him as being about 35 years old, thin, wearing a Prince of Wales suit, and having a
very thin face, one can only assume they were both describing the 35 year-old, 5' 7", thin, blond-haired, blue-eyed,
very thin-faced, suit-wearing "Third Secretary" and "Assistant Cultural Attache" at the Soviet Embassy, KGB colonel Nikolai Leonov, the guy who had turned Raul Castro and Che Guevara onto Communism in 1955, who is in many photographs with Fidel and/or Raul Castro, and whose "calling card" was found in Fidel's possession when Fidel and Guevara were arrested in Mexico City in 1956.
https://www.maryferrell.org/showDoc.html?docId=48495&relPageId=3But it's hard to believe that Leonov tried to physically impersonate Oswald to "old hand" Cuban Consul Eusebio Azcue, for the simple reason that Azcue would have known him from diplomatic receptions they had attended, from consular business they had conducted with each other, and maybe even from playing against each other at Leonov's beloved Soviet Embassy volleyball games.
So, in my mind, Leonov didn't actually impersonate Oswald physically, but he did provide Sylvia Duran with one or two passport-sized photos of Oswald that were taken in the USSR, and told (or had Castro's intelligence service tell) Duran and Azcue what to do, and what to say to the authorities,
afterwards.
-- Mudd Wrassler Tommy
PS Google "nikolai leonov" to see some photos of him.