Babies Highchair Rocking Chair

This highchair is an item I would like to find an estimated value for so I can list it for sale. I have never seen an item like this before. It is a babies high chair with a screw lift on it to convert it to a rocking chair. It appears homemade as there are no manufacturers markings on it of any kind. The seat and backrest are wicker and it is not torn or frayed. The finish on the wood is good and does not appear to have been redone. The mechanism to raise and lower the chair work good. I am not sure of any more information needed to appraise this item. Any ideas as to its value would be appreciated.