A few years ago I spent a weekend with Katherine Pogson at Designer Courses on one of her bag making courses https://www.designercourses.com/
Katherine had a lovely brown bag that was made from one piece of leather. I was quite taken with this and used it as inspiration to create my own one piece. I have made a couple of these since then and then recently when meeting with a client was asked to make another one. This client was having receiving the bag as a present from a friend so we needed to be sure of her requirements.
Though she loved the original red bag it is not always possible to purchase the exact same leather, so you need to consider how to achieve the same result. It is similar to ordering enough fabric in a certain shade or enough paint so there is enough in the same dye lot.
Though I was able to find a beautiful red leather I needed to extend the lining to ensure that the bag stayed upright. My client also wanted an internal pocket for her phone and magnetic clasps to hold the top together.
The side view of the bag gives a sense of the depth. Ladies, this is not a bag to carry everything. This is a bag that is useful for anyone who likes to carry the minimum - purse, keys & phone. No fuss, just a simple bag.