imperforate

As the Chicago Tribune reported in 1940, stamp collectors saw Farley’s use of the imperforate sheets as a “betrayal” of the people who loved stamps most.

The abnormal varieties in this series are of course the imperforate ones, and of these we present cuts of a full set in blocks of four, numbered 100 to 105 on Plate IX.

Although made and approved, this stamp is said to have been withheld from issue in this imperforate condition.

The acetabulum for the head of the femur is imperforate, being a simple oval basin, as in Chelonian reptiles and the higher Mammals.

One female trapped on February 19, 1950, weighed only 140 grams and was still imperforate.