from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
DOUBLE INSURANCE, contracts. Where the insured makes, two insurances on the
same risk, and the same interest. 12 Mass. 214. It differs from re-insurance
in this, that it is made by the insured, with a view of receiving a double
satisfaction in case of loss; whereas a re-insurance is made by a former
insurer, his executors or assigns, to protect himself and his estate from a
risk to which they were liable by the first insurance. The two policies are
considered as making but one insurance. They are good to the extent of the
value of the effects put in risk; but the insured shall not be permitted to
recover a double satisfaction. He can sue the underwriters on both the
policies, but he can only recover the real amount of his loss, to which all
the underwriters on both shall contribute in proportion to their several
subscriptions. Marsh. Ins. B. 1, c. 4, s. 4; 5 S. & R. 473; 4 Dall. 348; 1
Yeates, 161; 9 S. & R. 103; 1 Wash . C. C. Rep. 419; 2 Wash. C. C. Rep. 186;
2 Mason, 476.