Trouble Finding This Icelandic Overprint in Catalogues...HELP?

I have been working on cataloguing & pricing my rather large MNH Icelandic Collection,
(on and off since last October) and have run into a problem Identifying/pricing
this nice block. The overprint is on a Facit #199 / Scott #175 (75a Gullfoss ) printed
30.5.1932. Facit has more Back of Book listings than the Scott Cat., but I cannot find this
overprint. My good Stamp-Friend helped translate the Greioslu-Merki as "Payment Logo 10"
Perhaps someone of you has another Catalogue or perhaps can add any new info vis-a-vis this block.
Thank You for taking a look,
H.G. Golightly

 

Greetings Hochstrasse,
Thank You for time spent trying to ferret-out my Stamp I'd. problem.
I noticed that my 2016 Scott catalogue has a listing for the Gullfoss 75a
'Revenue Cancellation" but it is in the 'Used' column. Also there is no mention of a Revenue cancel. for the 65a. Could, what I took for an Overprint be considered a Cancellation? Perhaps someone else has an opinion and the mystery will not be so easily solved. Never the less, Thanks again for you info.
Best regards,
Harry

 

This is no postage stamp,but a revenue stamp.
Greidslumerki translates: Stampduty-stamp.

 

Thanks, but if I understand you correctly you are saying is that my block is a block of Stampduty-stamps & not an overprint. Correct?
HGG

 

Hello Harry, your stamps are postage stamps that are overprinted for some kind of duty or tax. Are they unused? do they still have full gum? I believe that duty stamps are most commonly cancelled by a pen cancel or a signature or sometimes a duty paid or date stamp. even my birth certificate has one.
Regards, James

 

HI James,
Nice to hear from you again & Thanks.
Upon close inspection the block shows absolutely no sign of any cancellation and exhibits excellent undisturbed gum. This is what makes this a conundrum for me. i.e. trying to get an approximate value. As mentioned above, Scott has listing for the 75a Gullfoss Revenue stamp but it is listed 'as used'.
I was hoping that another catalogue might have more info as the Facit & Scott remain wanting.
Regards,
Harry

 

Thanks Werner,
Guess I'm stuck w/ not knowing any values other than it being simply an unlisted but neat example of Icelandic postal history. That's enough for me. May I add, I really appreciate all of the members who pitched in their 2¢ worth.
Best Regards,
Harry

 

Too bad post is old but NOT Best answer Stamps are listed in Facit for 1935 They were issued prior to specific revenues being printed
Remainders of 65 aurar and 75 aurar Gullfoss stamps of 1932 were overprinted for this use, until specific Greiðslumerki stamps were definitively issued in 1936. Valid from 1st April 1935 - March 1941
They were created for the payment of a flat fee on receipts of payment for amounts greater than 20 aurars on money-orders, invoices and receipt They were occasionally stamp cancelled but normally with a pen They are much less valuable than the 1931 Gullfoss series as they were much more common except for very rare inverted overprint

 

Country:Iceland
Series:Gullfoss waterfall
Catalog codes:Facit IS 199
Themes:Landscapes | Waterfalls
Issued on:1935-05-31
Format:Stamp
Emission:Revenue
Perforation:14 x 13¾
Printing:Recess
Colors:Blue green
Face value:10 Icelandic eyrir

 

A Huge THANK YOU to all who took time forwarding their opinion & facts concerning this older post.
My entire Iceland collection was sold through Weiss Auctions 3 years ago
@ about 10% of CV.
Cheers,
HGG