Perf Verification On Finland 1958 300(M) Airmail Stamp

Hi All,

My Scott 2000 catalog says the perf for this stamp (Scott # C4) is perf 11 1/2, but my measurements show the one I have is perf 12. The Scott catalog shows no Finland Airmails with perf 12.
Can someone please check a more current Scott catalog to see if a correction has been made. Or anyone else with another catalog, please look it up and see what it says the perfs should be.

The denomination on this one is "300" no "mk after the 300, and no comma after the "3".

Thanks in advance...

Dave N.
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2005 Scott -- 11 1/2
2007/2008 Michel -- 11 3/4

In Facit, it is listed as 11.75x11.75, with no other varieties.

Before the era of US bullseye perforations and serpentine die cuts, Scott generally provided perforation measurements only to 0.5 (1/2). However, there are a non-trivial number of European/colonies stamps that were perforated at a 0.25 (1/4) increment. If there is only one perforation variety, it is no big deal. But this has caused me untold headaches on WW stamps with minor perforation varieties. I find that I often cannot simply measure it according to Scott. I either have to look up the specialized catalogs, or line up the teeth of the duplicates and measure them comparatively.

Dave, if that stamp proves to be worth millions, I want it back!

Just kidding. Fun aren't they?

Jamesw,

Well, I had won some Finland Airs on an auction...

But this particular one was one that you sent me so if it is worth a Million, can we split it 50/50?

It is curious, because I know that Scott perfs are generally rounded to the nearest 1/2 perf.
This one is right on 12 x 12 or maybe 12.1 x 12.1. So perhaps it is an error.

I have a Sanabria Air Post book, but it only goes to 1950.

I'll wait to see what some other catalogs have to say.

Thanks everyone for the inputs.

Dave N.
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Do you have another C4 you can compare it to?

Unfortunately I don't have another C4 to compare it to.

Finland only put out about 10 Airmail stamps and I have about 4 of them.

I might try comparing to pics of C4s offered on auction sites - just to compare the perfs.

Dave N.
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Here's my C4. You can scale it and compare to yours.

Lined up at the right edge is my C6, as both stamps should be p11.75x11.75

Thanks KHJ,

I'll compare mine to yours.
Can I ask a favor? Can you use a perf gauge on yours and let me know if if comes out to 12 or 11.75?

Thanks,

Dave N.
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Dave,

My C4 measures 11.75x11.75 using a Linn's gauge.

Here's a pic...

According to specialized Finnish catalog, the perf on this stamp should be 11¾. Never seen/heard about this stamp with perf 12.

Thanks again everyone!

I think it might be time to upgrade to a better perf gauge!
That Linn's looks nice!

Dave N.
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You can try this tool too. It's designed for US Stamps but the perf gauge might help

http://www.americanstampcollection....s/viewer.php