casions when the plaintiffs’ premises were closed anyway were of no effect. Her rights must at least be asserted to the other party by some unequivocal, ‘ ‘overt act, which, if the easement existed, would be a cause of action.” Brayden v. New York, N. H. & H. R.R. 172 Mass. 225. Gadreault v. Hillman, 317 Mass. 656, 662. Powell, Beal Property, par 413, p. 451. Tiffany, Beal Property (3d ed.) § 1205. Walsh, Commentaries on the Law of Beal Property § 239, p. 601. The defendant did not effectively block the easement. She did not prevent its acquisition by the method provided in G-. L. c. 187, § 3, by posting a notice of her intention to prevent the acquisition on the premises for six successive days, or by personal service duly recorded. See Rothery v. MacDonald, 329 Mass. 238, 241. Therefore, no inference can be made that the accrual of the plaintiffs ’ rights was terminated.
The defendant’s final contention in this regard is that the plaintiffs’ use as lessees from 1945 to 1949 was not under “claim of right” and cannot be tacked. If that is so, the prescriptive period will not have been satisfied, G-. L. c. 187, § 2. The issue is one of privity, a requirement of effectual tacking. “A prescriptive period resulting in the creation of a prescriptive right can be made up of several periods of successive adverse use by different persons provided there is privity between the persons making the successive uses. To produce the necessary privity there must be some relation between the successive users of such a nature that the use by the earlier user can fairly be said to be made for the later user, or there must be such a relation between them that the later user can be fairly regarded as the successor to the earlier one.” Am. Law of Property, § 8.59. In accord are Bestatement: Property, § 464; Powell, Beal Property, par. 413, p. 455; Tiffany, Beal Property (3d ed.) § 1207. See Matthys v. First Swedish Baptist Church of Boston, 223 Mass. 544, 546; Bucella v. Agrippino, 257 Mass. 483, 488.
Here, the master could infer that when William J. Maher, following the occupancy and use by the Lussiers, delivered