Does anyone know the manufacturer and model of cowbell Corky Laing used on that tune?
When was that, 1971? You would first have to look and see who was making Latin-style cowbells at that point. Drum companies had very limited offerings, so it was probably not anything from Ludwig, Slingerland, Rogers, Gretsch, Camco, etc. and I don't believe Rhythm Tech was around yet.
If Latin Percussion was up & running at that time, I would guess it's theirs.
Bermuda