Hello, I need help, this time is not for me, but for a friend, a lady gave her a Viking Husqvarna model 6010 this is a very old machine but looks is working fine, we can not say that for sure because the bobbin case in missing, does anyone know where to find parts and manual for this machine? and if some one is familiar with is how old is it? is made totally out of metal no plastic!!!! It is very heavy. It looks like a very and strong sewing machine. Thank you.