I had a pair that belonged to Juan Mendez, Pacheco's bongocero in "Viva Africa" album. Mendez was also the bongocero for the SAR All Stars and Roberto Torres. When M. Cohen came to WDNA, Miami many years ago, I took the bongo for him to see. He said it was one of the first batch of 10 he had made in Maywood, NJ. I had these bongos for over 30 years and tarded them to Julito from this forum.
Mendez told me that Cohen had taken to bongos to him in a grocery bag back in 1964, at a dance he was playing with Pacheco in Union City, NJ.
Here is a photo of them. Tag reads: LP Maywood, NJ., circa 63/64.
Dario