Hi Lance,
many thanks, I am glad you like the effect.
The frist layer of oil was a mix of burnt umber, burnt sienna and greyish green (mixed from dark cobalt blue, naples yellow, titanium white and furnace black) with a bit of fast drying agent added, the consistency was rather thin. I made small dots on the lower edge of the sidewalls, which I afterwards "pulled up" over the semi gloss surface. Afterwards I took a stiff brush and blended the paint into the surface.
In the second step, I took van Dyck's brown and made basically the same process, only this time I applied a smaller amount of oil paint with lower number of dots and the paint was used without thinning, I just put it on a cardboard before to soak off the linseed oil.
As visible on the photos, the soaking is stronger along the tube construction, so I made the effect stronger there.
Hope this helps, in case of questions I will be happy to give you more details.
Cheers
Ondra