Ossie Clark 60's/70's Dress

[natalie]

I have an Ossie Clark dress in perfect condition. I want to know the value of it? if no one knows the value if there are any places in Sydney Australia that i can take it to to get it valued
Pics below

 

[Circa Vintage Clothing]

Lovely dress Natalie - if you try Lawson's auctioneers, they should have a valuer on file who can help you.

 

[avamac]

Sheryl Crow looks like she's sporting duck feet with the Ossie.