Thank you for viewing. This is a USA-made 501XX WWII model, produced at the Valencia factory. Model number: 44501 Compared to the 55 and 47 models also made in Valencia, the production numbers were lower, making this model more valuable. Valencia-made items are increasing in price year by year. Especially the WWII model is popular, so if you are looking for one, please consider it. Top button back stamp: 555 Leather patch Red ear Single stitch on the back of the pockets Big E W32 inches L36 inches Size (flat measurement) Waist: Approximately 40cm Rise: Approximately 31cm Inseam: Approximately 73cm Thigh width: Approximately 24cm Leg opening: Approximately 21cm Please allow for some error as this is amateur measurement. Popular model: Levi's 501