The last number of Caslon's Circular

0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1

contains an ingenious novelty in logotypes, so simple and so useful that one wonders that it was not thought of before. It is intended for catalogue and registration work, where consecutive numbers are used, and consists of eleven pieces, each containing ten figures, as represented in the margin. No. 1 contains unit figures 0 to 9, No. 2 is 1, ten times repeated, and so on to No. 11, which contains ten ciphers. Not only is the risk of error reduced to a minimum when these types are used, but composition is much expedited, only a little more than one-tenth the number of separate pieces being required. To derive full advantage from the use of these figures, there should be no turnovers in the work necessitating blanks in the figure-column, and each page or column should end with the unit-figure 9.