Could you give me a view pointers on specific details that can help me to determine the collection?The skirt in your picture looks like a vintage Celine silk midi skirt with a floral print, probably from one of the collections from Phoebe Philo's time at Celine, which ran from 2008 to 2018. The floral design and use of silk reflect Philo's penchant for minimalism. An artistic design that marked her time at the brand. However, without more specific details, it is difficult to determine the exact collection.