Black Harding Stamp, Is This One Of The Rare Stamps.

Hello everyone. I have this stamp and I don't know if it's one of the rare Black Harding's. Can some please point in the right direction to authenticate.

Welcome. You can learn more here (towards bottom of page)
http://www.stampsmarter.com/1847usa...ar/1923.html

Don

Thank you Don. So what do you think? Is it a #613 or #610.

#613 Doh, brain fart... it 610 (11 x 11)

610

Rachel, you can always do a coin toss......

Peter

You can download a free perforation gauge here http://stampsmarter.com/learning/Fo...rfGauge.html (until you can get a good one)
Don

Ok Don so what exactly am I looking for with this gauge. And what other distinctions should I be looking for.

Did you try the Stampsmarter link yet? You may be able to find your answer there

Measure the stamp perforations with that gauge. And maybe show us a scan of the back of the stamp.

On the first link that Don posted are detailed instructions on how to tell if you have the !!44th!! copy of the very very rare 613. He seems to be a believer in the teach a person to fish philosophy.

Hello Don sorry the late response but here are some pictures of the stamp that I have. I think I use the gauge correctly.

Rachel - you need precisely to line up the perforations of the stamp with the circles or lines on the gauge. From what I can tell from your images, you have gauge lines running into different points of the perforations or their teeth.

Your stamp is 11 x 11 has shown in these images (I digitally altered them to align the perfs to the gauge).




You cannot 'measure' the design using the paper gauge and in fact trying to measure the stamp design is not a definitive way to determine if this stamp is a #610 (flat plate) or #613 (rotary).

Please post a good scan of the stamp back, this often can help the ID of the stamp. You can learn more about this here
http://www.stampsmarter.com/learnin...methods.html
Don

Here are some more pictures of the back side of the stamp.