There are actually 2 bags named after Jackie/Bouvier/Kennedy/Onassis. At first glance they look similar but they are actually 2 different bag models.
1. The Bouvier, or G1097 was created in 1958 and is a flattish shoulder bag with a snap-hook lock closure
2. The Jackie, or G1244 created in 1961 with a wider leather base and a piston lock
There were other modifications to these basic models above featuring slightly different locks etc over the years.
Jackie Bouvier/Kennedy/Onassis carried both models of the bag in many variations
Many Hermes lovers confuse Jackie O's bags with the Hermes Trim (just discontinued). She may have owned Trims which look similar to the Jackie but she certainly carried her namesake bags that became part of her everyday chic style.
Tom Ford re-launched the Jackie in 1999 but there have also been Bouviers during mid-2000s.
Frida Giannini brought out the softer New Jackie with a detachable longer shoulder strap and tassels in 2009 in 2 sizes, the Large version is now a little smaller than the massive Large version of '09
The original version of the Jackie was launched again AW '11 with a single adjustable strap but only Med size