I'd say that's for a 55 Chevy Bel-Air.  The 150 & 210 had the painted dash.

Johnnee D wrote:

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Sell it as a cheese grater

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 Swiss cheese?

Should be more expensive then, since BA was top of the line, + add 10% if it's for a convert, + 15% if it has power pack, -5% for Powerglide

Greaser wrote:

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So this radio delete is strickly for the 55 Bel Air and I bet it is quite rare.

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Yes, this is stricktly for a 55 Bel Air.    I'd list it on ebay.

The 55 150 & 210 had a painted center portion of the dash, and a different radio delete.   Same idea with 56 & 57.   About 10 years ago I sold a couple 57 Bel Air radio delete plates on ebay, I think they went in the $100 range.    I had some 57 150 & 210 radio delete plates but they didn't sell as well, and almost couldn't give away the 150/210 clock delete plates.    I can't speak for 55 & 56, but all 57 Bel Air's had clocks as the Bel Air trim joins at the clock hole. 

Sold elsewhere for $200.00

I've got a '58 Chevy radio block-off sitting around in my garage along with a pair of '58 Biscayne fender / door nameplates. I wonder if they are worth anything?

Probably not; the '58s don't have the tri-five following. I wouldn't mind a '58 though, just as long as it didn't have a Continental  kit & stretched back bumper...

 

Back in '55 it is not hard to imagine the radio being left off the original order. Heck, when my '67 Chevelle was made, a fair number of cars built around mine were without radios. Oftentimes the dealer could leave the radio off, then sell whichever radio the customer wanted, be it a manual tune AM, a deluxe pushbutton AM, plus a rear antenna. In Canada on the Beaumonts & Chevelles that year the AM/FM was still a dealer option, not an assembly line option.