I bought these at a fundraiser. They were donated. I know very little about them which is why I have taken photos of all sides. It does say Emmanuelle Khanh Paris on the lense. Emmanuelle Khanh Paris hand made in France private eyes on one arm and EK 520 CS 16 54 21 148 on the other.From what I can tell, these are worth from $200-500. I can't find the exact ones to compare. I am starting this auction at $55 and these are being sold as is. I do not see anything wrong with them, but I think they are used. ! Payment must be received within 48 hours of end of auction or item will be relisted. I accept Paypal. Thank-you.