Hi Guys, Is there any relatively easy way to date an extension? The original home was built in 1958 and an extension has been added to the back. It looks pretty similar but is still obviously an extension. The only thing I have to go on is that its got the newer white wiring whereas the original house still has the black type wiring. I don't need to know exactly when it was added but I'd like to know if it was 60s or 70s etc. Thanks heaps

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