Also from a business standpoint why would Tama spend dollars to buy shells from Keller when they have the ability to make their own for pennies...Makes no sense, what so ever, Like Tamacam owners trying desperately to make the connection between Camco and their Tama's with the Camco name on it.[/QUOTE]
Because when a business is bought, left over assets often go with it. Early tama camcos had usa shells until they used them up.
Those early tama camco shells were indeed usa camcos with the re enforcement ring. After the leftover shells were used, tama shells took over and they are 100% different shells. They look like luan with the grain going vertical as in typical stencil kits of the day.
wikipedia quote
"Tama briefly used the Camco name in the late 1970s for so-called Tama/Camco drum kits which varied between US-made Camco shells and sometimes Japanese-made shells with a rounded lug similar, though not the same, as the Camco lugs.":