AlexRankin,

Gen Hatcher in 'Hatchers Notebook' mentioned using lanolin as a preservation for use on firearms (e.g. Frankford Arsenal Cleaner No.18, and IIRC one from Japan that was a mix of 30wt motor oil and lanolin).

There are however, much easier to use products for preserving the blades on your straights

Have fun !

Best regards

Russ