Rectangular blued-steel frame, crank bridge, thin turn-pin sides with tear-shaped endings, + 3,0 both eyes. <br /><br />Photo: Bertil Wreting ©Nordiska museet Rectangular blued-steel frame, crank bridge, thin turn-pin sides with tear-shaped endings, + 3,0 both eyes.

Photo: Bertil Wreting ©Nordiska museet

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