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A bulla (or clay envelope) and its contents on display at the Louvre. Uruk period (4000–3100 BC).. A bulla (Medieval Latin for "a round seal", from Classical Latin bulla, "bubble, blob"; plural bullae) is an inscribed clay, soft metal (lead or tin), bitumen, or wax token used in commercial and legal documentation as a form of authentication and for tamper-proofing whatever is attached to it ...
Commitment schemes have important applications in a number of cryptographic protocols including secure coin flipping, zero-knowledge proofs, and secure computation. A way to visualize a commitment scheme is to think of a sender as putting a message in a locked box, and giving the box to a receiver.
A coin that has been graded and authenticated by one of numerous independent grading services. [1] See also encapsulated coin. chop-mark See banker's mark. church tokens. Also called Communion tokens. Tokens generally issued initially by Scottish parishes (die stamped one-side only to show the parish) and later in the United States and Canada.
The Seed Library of Los Angeles: checking out seeds at a monthly meeting. Seed library shelving, USA. A seed library is an institution that lends or shares seed.It is distinguished from a seedbank in that the main purpose is not to store or hold germplasm or seeds against possible destruction, but to disseminate them to the public which preserves the shared plant varieties through propagation ...
A 1969 United States Mint Proof set of 5 coins including 40% silver Kennedy half dollar. From 1950 to 1955, proof sets were packaged in a box and each of the five coins was sealed in a cellophane bag. 1955 saw both the original "box" packaging and introduced the flat-pack, where the coins were sealed in cellophane and presented in an envelope ...
1892 - Catalogue of Chinese coins from the VIIth century B.C., to A.D. 621, including the series in the British Museum - Terrien De La Couperie 1903 - Catalogue of the coins of Parthia - W. Wroth 1941 - Catalogue of the Muhammadan coins in the British Museum, Catalogue of the Arab-Sassanian coins (Umaiyad governors in the East, Arab-Ephthalites ...
The site is also home to The Organic Way, extensive conference and educational facilities, a vegetarian/vegan restaurant, a small shop with organic seeds and the charity's Heritage Seed Library, which conserves over 800 endangered varieties of rare vegetable seeds under threat from extinction.
The basic obverse design of the Seated Liberty coinage consisted of the figure of Liberty clad in a flowing dress and seated upon a rock. [3] In her left hand, she holds a Liberty pole surmounted by a Phrygian cap, [2] which had been a pre-eminent symbol of freedom during the movement of Neoclassicism (and traces its roots back to Ancient Greece and Rome).