Background: I recently bought one of the PII TracII handles, 1) as a curiosity since it's the one era of Gillette handle I don't have, and 2) because I plan to use it for airline travel.
When it came, I dug out all the old Atra cartridges my dad gave me some time ago when he was cleaning out his bathroom cupboard, having since gone electric.
Which leads to my question: I was under the impression that Atra and Trac II were highly cartridge-interchangeable, with the difference being pivot vs slide fit. However, these cartridges seem incompatible, as they lack a "channel" to run the handle through.
Was there some point in which Gillette ceased to make them interchangeable? For info, the plastic cartridge holsters are all labeled Atra, the cartridges themselves are all indeed Gillette brand, and there is no lube strip.
When it came, I dug out all the old Atra cartridges my dad gave me some time ago when he was cleaning out his bathroom cupboard, having since gone electric.
Which leads to my question: I was under the impression that Atra and Trac II were highly cartridge-interchangeable, with the difference being pivot vs slide fit. However, these cartridges seem incompatible, as they lack a "channel" to run the handle through.
Was there some point in which Gillette ceased to make them interchangeable? For info, the plastic cartridge holsters are all labeled Atra, the cartridges themselves are all indeed Gillette brand, and there is no lube strip.
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