Here's something similar (1959), but not hand cut. Came from the Dreier CFL collection. I believe these were prototypes. Unfortunately, PSA wouldn't designated them. Possibly, slipped through the production process, but maybe an earlier test run before they decided to print the backs, who knows? Brian from BMW said he's seen a few others.
https://drive.google.com/open?id=0B8...FJnVTBQQ0dVcnM ;
https://drive.google.com/open?id=0B8...FFzU19lYUZPYU0
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