“… 0 A ATTASHrewr#20 wnOA-30/94 Envelope addressed to Sefor Carlos Jurado Edificio Confess 2.6 Pachuca y Veracruz Mexico, DF No return address Sender's initials: M.3. Postmarked 18 Decezoer,1968, Guatemala. Guatemala, December,1968. Dear Carlos: Excuse ne for not having repli …”