Offered is a very scarce Mckesson and Robbins one pound bulk stock raw drug used in manufacturing medicinal ointments, cosmetic creams and pomades.
Marked "U.S.P.", the fate of this block of SPERMACETI was most likely intended for health related products. The label states: "for manufacturing purposes only" and seems too pure for making candles.
The age of the very neat piece is from the late 1800s to early 19th century. Measures 7.5"L x 5"W x 1"H and is in "as found" condition from a long closed New Jersey pharmacy. The contents are wrapped in paper which sports a complete aged and stained label. There are pieces of wrapper that are missing and some edge loss of product. This honorable wear is commensurate with age, storage and travel.
This specimen is the only one I have seen and belongs in a museum or fine collection.
The sourcing of this product was from sperm whales and was not from their blubber. I will leave it to the new owner to discover the not so colorful history of the whaling trade. Moby Dick is a great start.