A white label promo single from Portugal

Here's another one from Portugal. And this time it's a pressing that I not even knew existed until this week – a white label promo version of the Do You Remember Rock n'Roll Radio? single.
The labels are printed with "Invendavel disco de promocao" (promo not for sale) on both sides. The sleeve is the same as the stock issue.

Songs: Do You Remember Rock'n'Roll Radio?/I Want You Around

Number: Sire/Nova SIR 4037 NP

Year: 1980

Country: Portugal

Matrix: SIR 4037-A / SIR 4037-B

Notes: White label promo

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And here is the stock version:

Songs: Do You Remember Rock'n'Roll Radio?/I Want You Around

Number: Sire/Nova SIR 4037 NP

Year: 1980

Country: Portugal

Matrix: SIR 4037-A / SIR 4037-B

Notes: Stock version

The sleeve is the same for both versions:

More info about Nova and the portuguese pressings here and here.