Model 66 L

[Guest]

I have what I think is a model 66L. I am looking for the black plastic piece that surrounds the opening where you view the dial.
What is this piece called, and where can I order one from :

I have some pics I could send if that would help.

Also, the label inside the cabinet says " Model 29 & 45 " and has "39-36" in the upper right corner. What model chassis is this ?

Thanks, Randy
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