Classic old British double rifles, in original cases, often included a Vaseline jar. I am sure that vaseline was used to cover metal surfaces to protect against moisture and resulting rust. What, exactly was that vaseline, was it the same as modern, common white petroleum jelly called vaseline? Was it originally used to cover rifle bores as well, for long term storage? Tell me exactly what the old time 19th century British double rifle owners did to their rifles to protect them for long term storage, especially in humid or wet climates -----what products did they use, and how did they use them? I suspect that they gave excellent protection, maybe comparable with anything available today?