Hi Jack,
The Type 2 Wing with white mesh backing is a mystery. Ken mentions in his book 'Into the Maelstrom' about the "white mesh cotton backing material typical of wool / felt badges made in the US during the war -but with no evidence of them being manufactured in the US!"
As '48th' highlighted these maybe Patchking made insignia for the collecting market as the white mesh backing is often seen on US manufactured insignia, but with no evidence of a wartime order it's probably a safe assumption to think these were made for collectors.
The mystery continues.
Attached is a front and back view of a Type 2 Wing.
Paul
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