Scott 613 Stamp

I know nothing about stamps and bought this one,looked it up and it might be worth money but not excited yet as I don't know what I'm doing with stamps,any info would be great,thanks.

Scott 613 is worth good money, but yours is most likely a Scott 610, perf 11 Flat plate. The expensive variety is the perf 11 Rotary press and the only ones recorded are used.

This is not a 613. It's a flat plate stamp not a rotary press stamp. Scott 610. Flat plate stamps are smaller, the measurements are in Scott.

It appears the crispness of the image would lead to believe it is a 610.
Huffy, do some searching on the net for info on flat plate printing and rotary press printing.

Hi,I did a bit of research and at the top right there is a straight line mark,a site on the internet said this can't be made by a flat plate print,so I bought it,I'm not into stamps so I thought I'd get some info here,I have a Metric caliper here and I'll measure it when it arrives.

This link below explains the "census" of the 39 known singles (and two pairs) of Scott #613 that have been recorded to date as "genuine". An interesting read, but a highly unlikely find for the average collector. In fact, the National Postal Museum collection of the Warren G. Harding issue doesn't even have one!

http://siegelauctions.com/enc/census/613.pdf

It looks like Perf 10, #612 (rotary printing). If it is a flat plate stamp, #610, perf. 11, there should be black ink spots on the back where the sheets were stacked on top of each other when the ink wasn't completely dry. Check for ink spotting first, if there is no spotting, check the perforation. Thats not full-proof, flat plate stamp don't always have ink spots on every stamp on the sheet, but most will. If there are no ink spots, and it is a perf. 11, measure the design size. #610 is 19-1/4mm. wide by 22-1/4mm. high and #613 is 19-1/4mm wide by 22-1/2mm high. The chance that it is a #613 are almost non-existent. If after checking these conditions you feel it is a #613, you need to get it expertised.

here is an imperf 'flat plate' block and a perf 10 'rotary press'



Can you see the difference in the image?
Sorry about the sloppy scan. Hopefully you can see that the flat plate version has a 'cleaner' printed quality. Look at the numerals where it is really evident. Your stamp looks like the flat plat version.

Hi,I found this picture of a 613 on an action website and it looks like the flat plate picture you sent,it's a 613 though,it sold for $45,000.

I'm all confused,nothing to do I guess until I measure it.

huffy - would you take 500$ for it?

Hi,I sharpened the image and you can see it's not a solid black color,there is dullness like the rotary.

I can blow it up here at home and it comes out really good but can't seem to do this om the website. I'll send a really good picture with my camera when it arrives(it's on it way here in the mail,the picture is from the website I bought it from).I'll do the measurements first and give them out good or bad.Thanks everybody for your help and yes I do know it's a huge long shot but I've picked up rare coins where the littlest difference makes a big deal(just like stamps)and people just don't know and sell them as an old coin,not offten but it happens,so I took a chance on this stamp,well see.

I'm not good at describing or explaining.
I'll try again though. It's not just the image where the ink is, it's where the ink isn't that is different one from the other. The flat plate has a cleaner look.

Ideally it would be great if you could find a known flat plate and overlay it with yours to see the image size.
Good luck and keep us posted,

Hi,I understand,I'm new to this and I'll wait till the stamp gets here and do the measurements and look for the other things you guys told me about.

I'm quite knowledgeable with coins and I know it's hard for me to try and explain coin stuff to a novice,but thanks everybody here,your very helpful,that's why I posted my questions here,I'll be back.

Received the stamp today and first thing I did was measure it as you guys told me too.

Please note,I know my second number is not what it's supposed to be and wanted to let you know that I'm a mechanic with 30 years of experience with a caliper and these numbers are exactly correct,I lined up the stamp border and the caliper with my 20X glasses I use for coins,I will try and get some pictures up but my camera is dead,it's charging up.

Height is 22.25 MM exactly but the width is 18.89 MM exactly,not 18.9 or 18.88 but 18.89 MM.

Do stamps shrink ?

Remember I'm a novice,be nice LOL.

Yes, stamps can shrink.

I find the easiest way is to cut the corners from a known #552, and overlay the cut template onto the supposed rotary that you are testing, aligning the top and left edge lines. If it's noticeably wider, send it out to be checked.