Among them was an Action Man judo kit, believed to be one of only two in such pristine condition, which fetched £5,400.
It belonged to 88-year-old Doug Carpenter, a former salesman for toy firm Palitoy, who had kept scores of boxes in his loft for decades.
The items went under the hammer at Vectis Auctions in Thornaby, Teesside.
The judo kit, dating from 1969 or 1970, was originally sold for 12 shillings (about 60p) and had a guide price of £4,000-£6,000.
Vectis’ specialist John Cathrall said: “The estimate for the Action Man Judo set has been estimated relatively low, it is the Holy Grail for Action Man collectors, only one other is known to exist and it never became available on the open market, an unboxed set would fetch around £1,000.”
A Palitoy Action Man boxed Racing Car No. 34810 achieved £2280 from a £300 – £500 estimate, while a trade box of boxed Helicopter pilots No. 34059 tripled its £500-£600 estimate to reach £1680.