Hercules Musik Automat © 189? Unknown.
German Strength Tester with music. The person who succeeds in compressing the handles at the top of the walnut case with force enough to bring the needle on the dial-plate up to 100, is rewarded by hearing a piece of music played by the work contained in this clever contrivance.
Ernst Holzweissig Nachf.'s 1898 Export Catalogue - Page 17