Domestic Rotary model 151 sewing machine in wood cabinet

this beauty was left to my mother by my grandmother, and now to me by my mother. 

unfortunately I have many bills and cremation fees and more to pay, so I'm going to try to get rid of it. 

its been kept in perfect condition in the sewing room since my grandmother had gotten it. 

it still works, and the wood is in perfect condition. In the pictures the only thing is it was still dusty when I took them. since it has been dusted. :)

I'd like to sell it but don't know how much it is worth and the internet did not help much at all... so any information would be appreciated. 

Good