14
F. S. DRAKE
a swastika, turning to the left or to the right; Type 3, a simple cross drawn vertically; Type 4, a simple cross drawn diagonally; Type 5, a figure similar to a Roman capital I; Type 6, a solid circle or dot; Type 7, a hollow circle; Type 8, Miscellaneous. No attempt has been made to illustrate all of these on the plates. When the nineteen types according to shape are combined with the eight types according to design, a total of 152 well-defined types is given. But within this total an infinite variety of individual differences is possible; in the present collection not more than one pair of duplicates has been identified as coming from the same mould (No. 463 and the sixth unnumbered seal). It would seem therefore that duplication has been purposely avoided, perhaps for security reasons.
Of the 979 pieces in the Collection about three fifths are cruciform in shape, about one fifth are bird-shaped, some of which, a single bird with spread wings, may suggest a cruciform outline, while the bird itself is also a Christian symbol.
Of the central patterns the greater number are the swastika, whether turning to the left or to the right, a symbol adopted by the Buddhists, but being of older origin, and used also in such Christian monuments as the Nestorian Tablet of Sianfu (A.D. 781). Next in number comes the cross, whether placed vertically or diagonally. Attempts to read Greek letters in the other linear designs have not succeeded.
The backs of the crosses are flat, with a strong loop (or two loops crossing each other) fixed for attaching a leather thong for suspension (Pl. II, Fig. f). Some of these are worn through, as though carried for a long time on the person by a horseman.
The designs are in high relief, too deep for an ordinary seal, but admirable for impressing on a slab of mud.
II. THE NESTORIAN CHURCH
man.
We may now ask how it came about that these bronze crosses of Mongolian workmanship and of Christian origin became buried in the sands of the Ordos region beyond the memory of living. We must remember that in the beginning Christianity not only spread westwards from Palestine into Europe, but that it moved eastwards at the same time through Syria to Persia and India. According to ancient Christian tradition St. Matthew and St. Thomas evangelized the East as St. Peter and St. Paul