Maltine Obstetrical Calendar.

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Creator

G. W. Lawrence, M.D.

Title

Maltine Obstetrical Calendar.

Coverage

New York:

Publisher

Reed & Carnrick,

Date

1892.

Description

Useful premiums, like this one, tend to be retained and used. Maltine, maker of food supplements for infants, children, and pregnant women, used this volvelle to help calculate a pregnant woman’s due date.

Source

Collection of Ellen G. K. Rubin.