The top image below demonstrates the appearance of Blue series Action Transfers in their packets. While the subsequent images on this page show the 18" version, it's the 15" version of "Polar Expedition" that's in the cellophane — & you can see that, compared to the 18" "Ambush in the Forest", there's no obvious distinction between them.
Despite the fact that one is three inches wider than the other when opened up, & has three sections rather than just two.
Picture Credit: the SPLAT Scan Archives, with thanks to StellarX (7 Wonders) & Topwinneronly
© Tom Vinelott 2021