26 x 34 x 5 cm. The desk is narrow. The exterior is a one piece construction with another piece in the middle that acts as a divider/pouch.
You can check his website for other stuff that he makes. Www.esde-bags.com
Finally got my Aktenorder briefcase from Esde. Ronny was a pleasure to deal with during the whole process and would recommend his work if you're interested in any of his bags.
As previously said, it's made with thick shell cordovan with the reverse side as the exterior and with the straps with thick cowhide. Hardware is oxidized brass I think. Normally, he uses thick cowhide but I inquired if he can make one using horsehide. Luckily, he had shell cordovan.
Honestly, I'm not sure. I'm assuming it's still the same with the grain side except for the look and texture. M_morias use reverse side as well and I doubt there are issues with it. But a leather expert would have a better answer on it.
You will have to recondition the jacket once it is almost completely dry to soften it up again. It won't soften without it and will be prone to cracking as the leather lost its original protection from the soaking.
The grain on the leather may end up becoming more pronounced due to the process. Damage will only occur if the water used is too hot as it can harden the leather permanently.