Double Interceptor motor among Enfield items in auction

A Royal Enfield motor with four cylinders?

Two Royal Enfield Interceptor motors paired in one frame powered racer Don Sliger to more than 200 mph at Bonneville in 1970.

Now a double engine much like it (perhaps a replica or recreation) as well as other Royal Enfield motorcycles and parts are included in the list of items to be auctioned Saturday, July 14 in Medfield, Mass.

The motorcycles are only a small part of the auction of the contents of Auto Dynamics, a former automotive service center in Medfield, opened by George M. Collins III.

Dual motor looks awesome.

Collins was a collector and restorer of Royal Enfield motorcycles (along with antique pocket watches). He is said to have owned many Royal Enfield Interceptors, only a couple of which are listed in this auction.

Collins died at 64 in Needham, Mass. Dec. 31, 2011. An Air Force veteran, his Boston Globe obituary attributes his death to exposure to Agent Orange during the Vietnam War.

There is a preview of items in the auction today, Wednesday, July 11, from 10 a.m. to 3 p.m. at 100 N. Meadows Rd., Medfield, Mass. The auction starts there at 11 a.m. Saturday. Auction-day preview begins at 9 a.m.

The auction materials don't reveal whether the double motor was ever completed or ran.

The two motors appear to be linked on the primary side.