An elderly woman from Stretton Sugwas, Herefordshire, discovered the unidentified bottles in her family home as she was preparing to move out.
Neil Clarke, branch manager of the Hereford store, was told the wines had been bought by her father before the war.
"I found three bottles which I thought were valuable - one bottle was a Ch âteau Latour and there were two bottles of Martinez 1927 port," he said.
The wines formed part of a consignment auctioned by Chadwick & Sons auctioneers at Abergavenny, fetching a total of £620.
Clarke said: "The port fetched £360 and the wine fetched £130, which is not bad - she was going to tip them down the sink."