Austria Issues Of 1908-13: Chalk-Surfaced Vs Ordinary Paper

Can someone point me to a resource that will help me differentiate chalk-surfaced paper from ordinary paper, specifically for the Austria issues of 1908-13.

Thanks!

Hi: Have you checked out stamp-collecting-world.com ? (under Austrian Empire). Another way to know if it's engraved is to place a piece of aluminium foil over the stamp a rub the surface with a gum eraser and the relief of the staqmp will show up.....if that helps.

I don't know of any on-line resources. For those Austrian issues, I examine them with a magnifying loupe or microscope. The chalk-surfaced paper will have a smooth white surface. Ordinary paper is somewhat smooth, but you will see the paper fibers, and the color is not as white. You may also see micro-cracks in the chalk surface using a microscope. Also, on chalk-surfaced paper, there will be chips of the chalk coating missing from around the perforation holes (this is what usually confirms chalk paper for me).

Hope this helps.
Robert

Here's my attempt to illustrate. The left 3h Joseph II stamp is printed on ordinary paper, the right on chalk-surfaced paper. You can immediately see the difference in whiteness of the paper.



I've pointed out a couple spots of missing and cracked chalk in the next two photos. Hopefully, they are clear enough. Also, notice the difference in the way the ink adhered to the paper surface in the "3"s.






Again, I hope this helps.

Robert

@trainwreck, et al.

Thanks for the help!

The coated versions are somewhat shiny and the coating covers the fibres.

uncoated:





uncoated and coated:



coated:

This stamp with coating has a postmark from the former Polish town of Zólkiew.




Pay attention to the very small dots scattered around all-over!



Zolkiew is now in the Ukraine - Zhovkva:



PS

The Polish diacritcs in the name of this town get lost in translation ... ;)