proof coin

См. также в других словарях:

• proof coin — noun : a coin not intended for circulation but struck from a new, highly polished die on a polished planchet and sometimes in a metal different from a coin of identical denomination struck for circulation * * * proof coin, 1. a coin struck as a… …   Useful english dictionary

• proof´er — proof «proof», noun, adjective, verb. –n. 1. a way or means of showing beyond doubt the truth of something: »Is what you say a guess, or have you proof? SYNONYM(S): See syn. under evidence. (Cf. ↑evidence) 2. the establishment of the truth of… …   Useful english dictionary

• proof|like — «PROOF LYK», adjective. like a proof coin in quality or appearance: »a prooflike specimen, prooflike silver dollars …   Useful english dictionary

• -proof — a combining form meaning resistant, impervious to that specified by the initial element: burglarproof; childproof; waterproof. * * * proof UK [pruːf] US [pruf] suffix used with some nouns for describing something that will provide protection… …   Useful english dictionary

• Proof coinage — means special early samples of a coin issue, historically made for checking the dies and for archival purposes, but nowadays often struck in greater numbers specially for coin collectors (numismatists). Many countries now issue them. Production… …   Wikipedia

• Coin roll hunting — (often abbreviated CRH ) is the hobby of searching change pulled from circulation for collectible coins. The serious hobbyist usually obtains his coins from banks in the form of rolled coins. Coin roll hunters obtain in the U.S., rolls of pennies …   Wikipedia

• Proof — may refer to: * A rigorous, compelling argument ** Formal proof ** Mathematical proof ** Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects ** Logical argument ** Evidence (law), tested evidence or… …   Wikipedia

• proof — ► NOUN 1) evidence establishing a fact or the truth of a statement. 2) the proving of the truth of a statement. 3) a series of stages in the resolution of a mathematical or philosophical problem. 3) archaic a test or trial. 4) Printing a trial… …   English terms dictionary

• proof — (n.) early 13c., preove evidence to establish the fact of (something), from O.Fr. prueve (early 13c.), from L.L. proba a proof, a back formation from L. probare to prove (see PROVE (Cf. prove)). Meaning act of testing or making trial of anything… …   Etymology dictionary

• Coin grading — In coin collecting coin grading is the process of determining the grade or condition of a coin, one of the key factors in determining its value as a collector s item. The grading of a coin includes the analysis of several criteria, the most… …   Wikipedia

• Proof-of-work system — A Proof of work ( POW ) system (or protocol, or function) is an economic measure to deter denial of service attacks and other service abuses such as spams on a network by requiring some work from the service requester, usually meaning processing… …   Wikipedia