I fell in love with these at a used clothing store about 15 years ago and bought them. They've been in the condition shown in the photos since I bought them, so I haven't worn them much myself. Based on the specifications, I believe they are an early reproduction model of the 66, produced at the Valencia factory in the early 90s. Levi's - Model: 501XX (110th Anniversary Reproduction Model) - Details Paper patch 501 (no XX notation) Red tab Big E Top button back 555 stamped No V stitch No hidden rivets Chain stitch Made in USA (Valencia factory) - Size: W31 L36 Actual measurements: Waist: approx. 76cm Rise: approx. 28cm Inseam: approx. 79cm Leg opening: approx. 19.5cm *Please note that there may be slight variations due to self-measurement.