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Five Suspect Perf 8.5 stamps - Scott #390, #391, #392, #393 and #411

I've had this group of perf 8.5 stamps for a while now and have decided to look at them now only because I recently had a Scott #411 pair certified as genuine which makes it ideal for me to compare the suspected stamps against genuine perforations. The Experts Book states that these stamps are often faked and I can see why. The potential profit for a faker ranges from X2.5 to X22.

Because there is no fully perforated sheet stock in which merely trimming a couple of sides produces a convincing fake if the perforations are proved to be genuine then the stamp in question is without a doubt genuine. Since all of the suspects are of the same perforation family I've decided to look at them all in one analysis.

It does not concern me that the suspect #391 and #393 both have flat perf tips, which in any other case would be a dead giveaway of reperforation, the 8.5 perforations were notoriously difficult to separate so many times scissors were employed to take a stamp from a coil. Now to the matter of perforation comparison, below are a series of images with the suspect stamps overlaid on top of the genuine #411 center perforations. The suspect has been rendered slightly transparent.

  

The suspect #390:

 

As can be seen the suspect stamps perforations line up perfectly with the genuine perforations.

The suspect #391:

As can be seen the suspect stamps perforations line up perfectly with the genuine perforations.

The suspect #392:

As can be seen the suspect stamps perforations line up perfectly with the genuine perforations. The left side perforations are slightly angled probably due to the suspect image being ever so slightly angled.

The suspect #393:

As can be seen the suspect stamps perforations line up perfectly with the genuine perforations.

The suspect #411:

As can be seen the suspect stamps perforations line up perfectly with the genuine perforations. The bottom side perforations are slightly angled probably due to the suspect image being ever so slightly angled

In conclusion: I can confidently state that all five suspect stamps are indeed genuine in all respects.

Reference material used: 

  • The Expert's Book. A practical guide to the authentication of United States stamps. By Paul W. Schmid.
  • How to Detect Damaged, Altered and Repaired Stamps. By Paul Schmid

As always comments and suggestions are always welcome. To Contact Riverside


To Contact Riverside Stamps:
Email:
Mike Girard - Owner / Operator / Web Master: g1rardmn1099@comcast.net


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