On Sept. 9, 1959 Mrs. Eliza Bonifacia Lopez, was the 25,000th visitor to Lago under a program they had to show the refinery to the local population. This program was begun on Dec. 8, 1952.  This booklet was presented to her as a memento to her visit and being the 25,000 person to make the tour.  The booklet was sent to me by Dolfi Kock who got it courtesy of Mrs. Edna Martilia, the grand daughter of Mrs. Lopez.