Vintage Black Jil Sander Leather Shoulder Bag

Really cool vintage leather Jil Sander shoulder bag. Its my mums from the 90s and theres signs of wear but its really nice leather so it wears well. I dont know much about the bag but theres really cool pen holder and card holder pockets under the flap and then 3 compartments. Its hard to take pictures cause its dark but let me know if you have any questions