HP 41CX Auction - Rare Variant?

[rprosperi]

When I inquired about a similar machine recently, Sylvain noted that BlankNuts (BN) came with these stickers in the box, but not-yet-applied, so the owner could decide to install it or not, based on the application.

The unit in the auction is obviously not a BN (at least the front isn't) so possibilities are:

a) The back of this machine came from BN and it's a frankencalc

b) The sticker from a BN was installed onto this machine, upside-down, for some reason

c) Mistake during manufacture, but that seems least likely of the 3.

As in most situations like this, we'll never know...