The chronology of the flint dagger which is the subject of the present paper has been discussed by R. A. Smith, who established the date of the type in the first phase of the Bronze Age, the period to which it had already been assigned by Montelius. A summary ot the list made by Mr. Smith is given in Appendix II below (p. 354-5); the few examples recorded with datable associations since 1919 bring the total up to 26.
Sir John Evans's description, adopted by Mr. Smith, gives the length and breadth of the type as varying generally between 5 and 7 ins. and 1½ to 2½ ins. respectively, although both larger and smaller examples occur. The blades are thin in proportion to their length, and lanceolate in outline, although in this respect there is a certain amount of variation. Both faces are flaked, and the working is generally of a very high character. In some cases major excrescences have been reduced by grinding.
Some typological development may be observed in the forms, although this cannot be compared with the elaborate evolution of the well-known Scandinavian series (below, p. 350). The changes take place in the butt. The earliest form typoiogically speaking, would seem to be a simple leaf-shaped blade, the widest part of which is approximately at the middle. There is no distinction between blade and tang or handle, and the latter is generally rounded off. Such daggers as the Green Low, Alsop Moor (Appendix I, no. 27, and fig. 1), and Acklam Wold (126) examples represent this form. It is not always easy to decide, however, whether other blades approximating to this shape represent a so-called prototype, and care has also to be taken to differentiate surface-found laurel-leaf blades of Solutrean age, although these are more usually pointed at both ends.