{"created":"2022-01-31T10:21:36.294011+00:00","id":"tec2955","links":{},"metadata":{"identifier":"tec2955","title":"Apparatus for testing keenness of eyesight. After Galton, by Cambr. Scient. Instr. Co. "},"revision":0,"updated":"2022-01-31T10:21:36.294016+00:00"}