Shoe cream that makes you fly

Surfing across the internet I came across an advertisment where an antique dealer in Norway is selling a tin of Mercury Shoe Polish. It is the ultimate for winged messangers and if your feather boots are faltering in the midst of the Xmas rush, this stuff is a must!
Considering that Mercury is transitting Capricorn - it probably does leather, too.
Any colour as long as it's Black. Yours for ?30!

Second Hand Shop: Rasmussen, Trondheim, Norway.