I am not well-versed in vintage denim. Based on my research, I estimate this denim to be from the 1960s, but I cannot be more specific than that. * Size: Golden size (W31.5/L28.3 approx.) * Details: GRIPPER ZIPPER, "K" stamp, chain stitch hem * Other: Numerous instances of damage, stains, and repair marks. * BIG E tab is cut off and could not be confirmed. Additional Notes: * It does not appear to be red-eared denim. * Hidden rivets could not be confirmed. * Back pocket with single-needle stitch on the back side. ※If anyone has more expertise, could you please identify the specific model of this denim? Thank you for viewing.