Assertion: english concertina | /r/HasProperty | manufactured by boosey
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Source sentences:
text: George Case English Pricelist, MDRA 1860 contributed by Robert Gaskins Summary of prices and models for English concertinas "manufactured by Boosey & Sons, … under the personal superintendence of Mr. George Case, the eminent professor and performer", from the annual Musical Directory, Register and Almanac (London: