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Suspect Scott #410 Unused Guide Line Pair.

This stamp was part of a larger collection of larger collection of Washington/Franklins I bought at auction in January of 2014. This is an often faked coil with a catalogue value of $30. The Experts Book states that this coil can be made by adding perforations to a trimmed imperforate #408, adding perforations to a #408V imperforate coil. There is no fully perforated gauge 8 ½ stock from which this coil can be made from so if the perforations prove to be genuine then the suspect is genuine.

The watermark is single line reversed S at the middle left and a S in the bottom right corner.


Fig. 1

The width of the suspect is a consistant 21.5mm from top to bottom.

The perforations in the middle show all of the signs of being genuine slightly oval in shape, pulled fibers on the left side and slight pressure ridges on the right. Unfortunately the pressure ridges did not photograph too well.

   

The perforations also match very well with genuine gauge 8 ½ perforations.

I place foil on the guide line and lightly tapped with the end of a pencil eraser to impress the engraved stamp features into the foil. Since the guideline is an engraved feature it too should show up in the foil.

 

As can be seen from the above image the guideline indeed shows up in the foil impression proving it is genuine.

Conclusion: In my opinion the suspect is a genuine unused Scott #410 guideline pair, previously hinged.

Reference material used:  used: 

  • The Expert's Book. A practical guide to the authentication of United States stamps. By Paul W. Schmid.

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Mike Girard - Owner / Operator / Web Master: g1rardmn1099@comcast.net


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