The Clockwork Spider Mark IV Schematic

Dimensions: 11 x 17 Edition of 100 Free Shipping in the US! Satisfaction Guaranteed -- Or Your Money Back! Well, I hope you're happy.  I gave you every chance, every opportunity to avert catastrophe, and you did nothing.  Not a one of you lifted a finger.  I warned you--I offered a reward for God's sake, out of my own pocket!  And now it's too late.   He's done it.  Professor Wrinkle's infernal Duplicator is complete.  And it works.  Heaven help us, it works.   What will happen now, you ask?  What's next?  I haven't the faintest bloody idea.  That isn't how time travel works.  Whatever it is, I doubt it will be good.  As far as I can see, I've only got one choice.  Only one answer, in the face of this unfortunate turn.  I must try to capitalize on it.   So now I offer to you the first photocopy.  Circa 1948.  Only one hundred and ten years before Xerox.  A trivial discrepancy, I'm sure.  It appears to be a blueprint, the work of the Professor's young ward, Percy--now long dead.  Except