http://dendro.cornell.edu/reports/report1998.pdf
[snip] A well-preserved juniper post, painted blue and with modern door hinges, was recovered from a modern village house simply because it looked suspiciously old. The sample we were given did not fit anything in our Neolithic inventory, so we sent a piece of it to Heidelberg to see what radiocarbon analysis would reveal. The date is 2117 B.C. +/-110 years, which means it is from some Early Bronze Age occupation near the lake at Kastoria. [/snip]
Thank Mr Civ, read later. :)