Last fall I left two pipes outside on a window sill. The window sill is fairly wide (it has a built-in flower box) and there's an eave over it, so the pipes didn't soaking wet from rain and snow unless the wind was really blowing. Anyhow, we live in New England, so it gets cold. And it's pretty damp all the way through April.
The pipes are a Stanwell #70 and a Sommer (Paris) paneled Rhodesian. Even though these pipes were left outside all winter, cleanup was relatively easy and I don't see any permanent damage. All I had to do was wipe the mold and dust off with a paper towel, polish the stems a bit and run a couple of pipe cleaners through the airways. Here's the before and after photos.
The pipes are a Stanwell #70 and a Sommer (Paris) paneled Rhodesian. Even though these pipes were left outside all winter, cleanup was relatively easy and I don't see any permanent damage. All I had to do was wipe the mold and dust off with a paper towel, polish the stems a bit and run a couple of pipe cleaners through the airways. Here's the before and after photos.