Algeria Bourse Cancel

I put this stamp in another compilation-type thread, but I'd like to ask a question here.

Do you think this cancel is for an old stock market? Or a stamp exhibition?



The Bourse is the current stock exchange in Algeria, but it was only opened in 1997.

Also, if this is a duplex cancel, with CDS and slogan, then it appears that one of them is upside down in relation to the other.

Thoughts?

FYI from stampcircuit

504 FRENCH COLS Algeria 1941 airmail cvr Algiers Bourse-Marseille, unusually franked SG81+162(cat £13). £20 Bid

seems unlikely to be an exhibition, then...thanks for digging that up.

I am guessing "stock exchange"

The forefront of commercial innovation eventually shifted from Italy to northern Europe. The Hanseatic League, an alliance of mercantile towns such as Bruges and Antwerp, operated counting houses to expedite trade. The term "bourse," which has become synonymous with "stock market," arose in Bruges, either from a sign outside a trading center showing one or a few purses (bursa is Latin for bag) or because merchants gathered at the house of a man named Van der Burse; nobody's quite sure.

Perhaps the term for that time would be "commodity market" ?

Reading:
http://en.wikipedia.org/wiki/Exchan...ized_market)