Advantages of private consignment:
1)  Significantly lower commissions 7.5%-10% all in (for items valued over $1K)
2)  Price control - If I can't sell it for a price we agree to, it doesn't sell "to the highest bidder".  I bring any bona fide offer to you for your consideration and ultimate ability to say yes or no.  
I have plenty of references from previous "happy consignors".  
My email is  
hcv123@att.net
My phone# is  516-991-5535
I invite you to reach out to discuss further details.