Vintage Lapel Pleated 1960s Party Dress

Vintage Lapel Pleated Party Dress This was given to me by an elderlyly relative so I am not certain of the brand or era but we think it is from the 1960s. Fits like a size zero and has great structure - very flattering. Hits about knee length for me but probably a bit above theknee for most. No tags given the age to identify brand or material. Great dress I just dont have an occasionn to wear it!