The forms of the fibulæ associated with Late-Celtic finds afford specially valuable evidence as to date. The pre-Roman, or La Tène, type of fibula was made in one piece on the same principle as the modern safety-pin, and therefore differed from the Roman Provincial harp, or bow-shaped fibula, in which the pin was separate from the back and worked on a hinge. Fibulæ of the earlier kind have been found with Late-Celtic burials at Cowlam, Yorkshire; Aylesford, Kent; and Birdlip, Gloucestershire; and on inhabited and fortified sites at Hod Hill, and Rotherley, Dorset. The fibulæ from the Stamford Hill Cemetery, near Plymouth, and the Polden Hill hoard of horse-trappings belong to the later class. As the forms of the different fibulæ will be discussed subsequently, no more need be said on the subject here. Ancient British coins have been found near the Late-Celtic cemeteries at Aylesford,[181] Kent, and Stamford Hill,[182] near Plymouth; also within the fortifications of the Late-Celtic _oppida_ at Mount Caburn,[183] near Lewes, Sussex, and Hod Hill,[184] near Blandford, Dorset. General Pitt-Rivers came across ancient British coins during his excavations on the site of the Romano-British village at Rotherley[185] in Cranbourne Chase, Dorset, and numerous specimens (especially of the coins of Verica, one of the three sons of Commios) have turned up from time to time at Farley Heath,[186] near Guildford, Surrey. [181] _Archæologia_, vol. lii., p. 315. [182] _Ibid._, vol. xl., p. 500. [183] _Ibid._, vol. xlvi., p. 423. [184] _Archæol. Jour._, vol. lvii., p. 52. [185] _Excavations in Cranbourne Chase_, vol. ii., p. 188. [186] F. Martin Tupper’s _Farley Heath_, p. 10. The Romano-British inhabited or fortified sites from which objects of Late-Celtic character have been derived, have already been specified. The following lists show the instances where Late-Celtic finds have been associated with Roman coins or with objects of Roman manufacture:— _Late-Celtic Finds associated with Roman Coins._