De Rosa Corum Bike Bicycle

I purchased the bike in September 2020. Size 54. I have the invoice and the original box. It is a brand new bike that was used as a window-piece in a shop in Switzerland. De Rosa "Black Label" (handmade steel frame). The bike is absolutely gorgeous. Famous Italian brand. The frame retails for $4,000+alone (see De Rosa website). The paint is a metallic/sparkling mineral white with a midnight-blue accent (which looks like a lighter-blue in different light). There is a small nick along the top bar that unfortunately occurred during shipment. *See photo It has a Shimano 105 groupset, DT Swiss P1800 wheels, and a FSA seatpost. I bought the bike as I wanted to get into cycling but when it arrived, I found it too pretty to use, so it has been a piece of artwork in my living room since purchase. It has literally never been ridden or sized. I ended up buying an indoor bike for fitness. Thus, I am interested in selling it and moving on toother hobbies. Measurement update: The top tube is 21.5 inches center-to-center