Grand Printers Inc. Embosser?

it is an embosser for a seal for the Grand Printers Inc. A seal is a device for making an impression in wax, clay, paper, or some other medium, including an embossment on paper, and is also the impression thus made. This was a corporate seal. Corporate seals are a common form of notification for companies and businesses worldwide. They are commonly seen on business envelopes or official documents. Though these seals once served as an important form of legal documentation, they are now largely vanity imprints that help brand corporate identities. They have a history that dates back many centuries and have evolved over that time to include more technological advances to enhance and define corporate entities.

5cm x 3cm
It is heavy for such a small item.