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Old plunger frame #'ed ZA7.S.20***

Does the S mean side car ??

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No,

S = Star Twin or Plunger frame


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Thank you

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I think it was the addition of springs in the tailend gave it the 'S' when they went to the plunger frames.

Gordo


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Hi Guys

These early frames are marked rither
S for sprung or R for ridgid

Jeff


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