Hercules Grip Machine

97 Years old Strength Tester Hercules Novelty Co. [Chicago, IL, USA]

Hercules Grip Machine © 1929 Hercules Novelty Co.

How strong is your grip ? Develop your muscles.

Click to enlarge
(members only)

TECHNICAL / MACHINE PICT.

Machine Picture
(members only)

SOURCES

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Machine's picture.