Dear Steve - What a beautiful example of a Victorian bed; it's rather unusual to have a king-size as full-size are more common. That said, the rarity of a king adds value and at auction similar models will sell between $300USD and $600USD. I know it's a big range but the prices at auction for a bed like this will depend upon the market it is being sold in and the auction house who sells it. Allow me to expound... because of the cost which would be incurred to ship a big, beautiful beast like this bed, it is more likely to sell to a local bidder. If you live in an area of Michigan where this type of construction and Victorian design is appreciated, err on the higher side of the estimate.
Thank you for taking the time to upload images of this bed to Mearto. If you have any follow-up questions, I am at your service.

Sincerely,

Erin-Marie