¶1This is an action of trespass de bonis for the destruction of a store alleged by the plaintiffs to have been personal property belonging to the estate of the late W. A. Farnsworth, upon whose estate they are administrators. The defense is that the defendant, in the removal of the store, was acting under the authority of the Lime EockEailroad Company, whose road is located over the exact spot on which the store was situated; that the store was not personal property but real estate; and that the owner’s remedy is not by action, but by petition to the county commissioners for an assessment of damages. The case is reported for a decision of the question whether the store was real or personal estate.
¶2The case shows that W. A. Farnsworth, more than twenty years ago, conveyed to the Cobb Lime Company, a wharf in the *449city of Rockland, making a reservation of the store in question in the following words : "Reserving the store on said premises occupied by J. R. Farnsworth, with the privilege of remaining as long as said store stands.”
¶3We think the store was real estate. The reservation retains the store and an interest in the soil beneath and about it for the use of the store as long as it stands. It might stand almost perpetually unless destroyed by some casualty. The store was probably located on some street or road, which gave it a chance for ingress and regress, as such privileges seem to have been carefully provided for other structures reserved in the same deed. It was an exception perhaps rather than a reservation. The title which the grantor retained was a qualified, base or determinable fee ; an estate which is subject to a reverter, and continues until the qualification annexed to it is at an end. Such an estate is both descendible and assignable. This case is very similar in its facts to that of Moulton v. Trafton, 64 Maine, 218, where the doctrine of such an estate is discussed upon the authorities. The language there which was held to constitute a limited fee, was an exception of mills "as long as said Trafton occupies said privilege with mills.” That case governs this.
¶4 Plaintiffs nonsuit.