Vintage cream tweed Chanel reversible jacket pale silver

I loved and wore this reversible Chanel jacket in the past on both sides, the silver side for evening, the tweed side in daytime. Because it is reversible I removed the Chanel label. However, you can see the weighted Chanel chain at the hem. I am trying to find the jacket online so as to get its authentication code number but because it is vintage, that might be difficult. I’m not sure if I would take a person’s word on the designer of a jacket without the label so I will persist in my search for the authentication number. In any case, the rich cream tweed is underpinned by pastel colors that show through the tweed lightly. The jacket has three-quarter length sleeves, with tucks on the tweed side and smooth on the silver side The jacket is a size 6 (36 Fr). It’s clear that the jacket has been worn and loved but it is still in good condition.