This is a JAEGER LE COULTRE ATMOS D customs made plaques for your atmos clock, it was duplicate from the original hanging plaque just to show what kind of clock that you have, this plague is very classic looking not for hanging you can just stick on for multiple purpose use to all the clock front base that have some scrush ,some hairline,some damage,screw hole can be cover all of those to solved your problem,safe you money to replace it,to re-plating it,to fix it so easy to use. 
This classic design plaque is good for 540 528-8 528-6 519 atmos ll look at the picture the plaque that you see that's the one that you going to get plaque only.