(en) Photographer Neuerdein. Vintage photography Tlemcen. Algeria
The second photo is "Entrée du Méchouar".
Both photos are of the 1860's. The photographers Neuerdien (brothers) held a very well known studio in France. Both brothers work in different issues. One was focused in the portrait and administration (Etienne Neuerdien) and the other one (Louis Antonin Neuerdien) travel a lot and took pictures from different places to be sold in Europe.
This means that both of these pictures probably belong to Louis-Antonin Neuerdien because these are pictures of Algeria.
The archives of the Neuerdein brothers (Frères Neuerdein) are included in the Michael project (Multilingual Inventory of Cultural Heritage in Europe).