Fiume 1919-20 #61 15c On 30c - Partial Double Overprint - Forgery?

Good Morning,

Fiume 1919-20 Scott Catalog #61 with the overprint 15c on 30c showing a partial double. I would like a resource to determine this stamps value please.



Thanks everyone!

UPDATE: Forgery?

What is double about this overprint?

If you just google "fiume 1920 franco overprint" you will see it is an incomplete and not a double overprint.

https://stampforgeries.com/forged-stamps-of-fiume/

Peter

Hello,
Search on site of Ivan Martinas expert for Fiume stamps.
You can see Sassone specialized :
"www.martinas.eu/Download-Fiume-stamps-catalogue.html"

Nice, thank you cupram!

No extra premium for that .

Fake overprint?

The "co" in franco at stamp forgeries?

After looking at the resources from both Petert4522 and cupram - I'm no longer certain...

Mine looks just like the one in the PDF.

"www.fiume-book.net The Stamps of Rijeka, FIUME 1918-1924 fiume-book@net.hrOctober 9, 1919 - March 6, 1920. Postage stamps. Hand overprint FRANCO and new values on stamps of 1919."

http://www.martinas.eu/download/Catalogue.pdf

Keep in mind I did say "Partial" Double Overprint NSK

That is not a fake overprint .That is a April overprint .The March shade is a lighter color

VERY much appreciated floortrader - Sorry I went back and forth on this one - Peter4522 sent me a link to stamp forgeries which threw me off - I was under the (bus) impression it was considered a fake... which almost made me dismiss the stamp altogether.

Added premium for it being authentic now though instead of fake :)

Good times!

Thanks for your respond ,here are the two different printings of the stamp ,notice shade difference . Also the overprints have a big variations and as I stated earlier it was not forged . Years ago I put a very specialized Fiume collection with all the different forgeries .