This page has a listing for the DEVELS series baits. This confirms that the DEVELS series were available to 1960. It lists: F-200, F-700, B-900, B-1000. This listing is significant and may help to date undated color charts as well.
This page has listings for the DEVELS series baits. It lists: F-100, S-100. This confirms that the DEVELS series were available to 1960. This listing is significant and may help to date undated color charts as well.
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