@Chris-NV I think this discussion has found a solution for you. Your comment about the grill in your avatar and that it was a replacement lid.
you have two of the three pieces needed to put your green lid back in action.
You have the Left side end cap and the handle, but you do not have a RH side end cap that will hold a thermometer.
@Steve Hoch mentioned the thermometer holder can be unscrewed, but that is on the older x0000 and early Silver Bs. they stopped having a bolt on thermometer holder and started using a cast mount part of the end cap to hold the thermometer.
So what you need to make your green enamel lid work is a RH end cap with a cast thermometer.
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