On 11/01/2012 01:54, Pierre COURTIADE wrote :


I am not at all a specialist of this kind of thing.
But perhaps could it be possible to read 0,93 instead of 0,43 ?
In any case these figures have been written by a French. If it was by an
American, the writing would be .93 or .43.

No, Pierre, it's definitely 0,43 (or .43) gold francs of the UPU system.
I discussed recently about another cover (1961) with 12 cents postage
due stamps and a 37 gold centimes UPU tax due mention. The proportion is
the same : 12 / 37 = 14 / 43

0,43 Gold-F as equivalent to 14 cents, that makes 0.326 US$ for a
(postal) gold franc. I was just wondering if there was anything official
within US postal service about that figure.

And yes, the UPU tax due value in gold francs should be written by the
departure postal authority.

--
Greetings, Bruno