Tiffany "Blue" box color

[artaurora]

Howdy
I think we are all familiar with the current "Robins Egg Blue" version of the Tiffany box color?
Yesterday I purchased a tie bar in a box of a different color: navy blue. This is a velvet & satin lined presentation box of the older type. But it got me wondering just when the "turquoise" blue first appeared and if I could date the 14k & ruby deco bar by the color of the box?

Anyone out there recollect...?
artaurora
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