Showa Stripes Komon
This is an ANTIQUE Japanese Small Patterned Komon. Komon are informal kimono worn at home and about town. They are essentially the jeans and t-shirt combo of thekimono world. The smaller the pattern on a komon, the more casual it is. This one has a very small stripe pattern, so it is a very casual piece. This kimono likely originates in the early to mid Showa Period (1926 - 1989), probably the 1950's or 60's. I believe this garment is silk, though informal kimono fabrics are not my area of specialty. The white lining seems to be rough silk.
I have inspected this kimono in detail, and the damages seem to be confined to the interior. Fortunately, that means they won't be visible when worn. I have circled the damages in the photos above. Eventhough there are some stains, this has to be expected given this kimono's age. Overall, I would rate this kimono in good antique condition. There are no tears or seam separations. It can be worn. It is a on the short side for most westerners, though.
146cm - Long (Collar to Hem)
124cm - Arm span
58cm - Width across the back
126cm - Total width of skirt
58cm - Sleeve drop
If you are unsure of how to interpret the kimono's size it is important to know that the length (collar - hem) should be approximately 10cm longer to 10cm shorter than the wearer's overall height (longer is better). This is because the excess length will be folded up at the waist. Meanwhile, the skirt should wrap around the hips a full 1.5 times. The armspan should also reach wrist to wrist on the wearer. In this case, the kimono will ideally fit a woman about 136cm (4'6") - 156cm (5'1") tall, with hips about 84cm (33") around. There is some give and take in these measurements though.