8 1/2 inch blade engrave knife. With Silver dragon sheath

Limoges Plate  13 1/2" Gold trim scallop edge

Bought  in mid 1980's, has signature on back.

Passenger train and freight train. All wood with metal axles and wood wheels. Loop and hook couplers.

I have a reversed painting on glass of a church with stainglass looking windows, the backing board has a picture of a little girl on some stairs with three little puppies. Any information on one or both of these items. It was given to a friend from his stepmother about 20 something years ago.

Antique Hopf violin with case

I have six of these chairs.  My mom got them from an antique store, and they are over 100 years old.

I know very little about them - they are all a little different, and they look handmade.  Anyone know anything about them?  Are they worth anything?