I am in possession of my mothers old 377 Electric sewing machine which is in very good condition. I would like to know its current value.

I think you need to research this at more sites, but the value has been fairly high. Look on Ebay and see what the bids are for similar machines. You will not get as much for it now as you can if we get a Republican in office to bring back the economy. Everything is low right now. $200 would be a good price now as people usually buy something like this for function as well as beauty.