Sentence:  [I]t was thought expedient by ſtatute 1 Mar. ſt. 2. c. 6. to revive ſpecies thereof; "viz." 1. That if any perſon falſely forge or counterfeit any ſuch kind of coin of gold or ſilver, as is not the proper <WSD>coin of this realm</WSD>, [...] ſuch offences ſhall be deemed high treaſon. 
Meaning of the word marked with <WSD> tags:  The legal money of a country.