It's hard to tell with the 2 Lubeck stamps because they are camera pics at an angle.
Check first to see if both stamps have the proper watermark. That's the easy way.
Even with camera, the stamps MUST be flat. Try using something stiff to hold down the stamp edges and have the album page flat. For Lubeck #1, need 2 pics of...
1) ...bottom 1/3 of the stamp (ornaments between the 2 denominations); there should be a small dot below the dash 2) the end of the left ribbon, the part almost below the "L" of Lubeck and just northwest of the tips of the left eagle feathers; there should be an extra dot inside the ribbon almost inline with top row of dots above the eagle heads
Lubeck #5 stamp appears promising, but the cancel is problematic. Need pics showing:
1) ...bottom 1/3 of the stamp (ornaments between the 2 denominations); there should be a 4 small dots below the dash 2) the linear ornament beneath "LUBECK" and above the eagle heads; there should be an extra dot just beneath the left arrow ornament
I can't be certain with the current pics, but I suspect your #1 is a reprint and your #5 is genuine (or reprint) with fake cancel. Better pictures would take out the guesswork. Also, hopefully PostmasterGS can chime in.
Hi crazyquilter , try looking in Yugoslavia - Bosnia Herzogovia 1918. Here is a screen grab from my Scotts Specialized.
Sorry, I was fixated on answer genuine/forgery question. Alyn is correct. It is a postage due from pre-Yugoslavia (Bosnia & Herzegovina). In Scott, it is Yugoslavia 1LJ7(1918), located at the beginning of the Yugoslavia listings.
The stamp below it on the album page is also a postage due, but for Lubiana (Ljubljana). In Scott, it is Yugoslavia NJ7(1941), located at the end of the Yugoslavia listings.
Both overprints have to be checked for authenticity.
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