It looks like a 1954 Bel Air (and maybe other Chevy auto models - maybe 1953, too) had that style dash grill (speaker cover, ash tray, and matching glove-box door). Here is a photo I found (with classy skeleton motif).
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http://memimage.cardomain.com/member_images/11/web/467000-467999/467510_166_full.jpg[/img]
The two eBay links above are for the same part/model - speaker grill and ashtray (one of the photos is upside down). Here is a 1954 Chevy Bel Air (Del Ray ?) glovebox door on eBay listed by the same seller who is listing the speaker grill.
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http://i15.ebayimg.com/02/i/01/fb/ee/a5_1.JPG[/img]
