I'd hang onto that. A 1961 E-Type goes for $250k+ at auction.
1961 Jaguar E-Type Series I - Sports Car Market
This extremely early, very desirable, and hard-to-find external-bonnet-latch, flat-floor E-type roadster was ordered new at the 1961 Paris Salon bywww.sportscarmarket.com
There is one on here sold for over £900,000.
1961 Jaguar E-Type Series 1 Market - CLASSIC.COM