I have a HV Designer I USB Emb Machine that is 4 yrs old & I couldn't be happier. Your Emma looks like it is missing a slide-on portion that attachs & surrounds the Needle/Bobbin area. Did your FIL send other parts? Ask him if there was another part. It might be with other parts of the MIL's sewing supplies. It would contain more Sewing Feet. I would say you have a jewel on your hand. Check for a Dealer in your area & ask questions. It would be a good idea to take it in so they can see if it needs a check up. Happy Sewing Days ahead.