been often , vals, and a great hardship was consequently put upon suc- We illustrate an improved shutter which, if applied to a shown to be practically as well as scientifically uscless. | cessive Masters of the Mint, in their not being able to obtain building otherwise fireproof, would afford the… … these tests in their verdict, which will be published in the next issue of the London Gazette.” POLLOCK’S FIREPROOF SHUTTER. “«The work of the coinage executed at the mint since the pre- Fig. 1 is a side elevation, with a portion broken away to vious trial of the pyx took place has not been on a…
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