This is a vintage men's suit jacket made by Lauren Ralph Lauren in a size 44R.
The blazer is black and white with a pinstriped pattern and features a single-notch lapel, a front faux pocket, 2 front pockets, 3 inner pockets, long sleeves with 3 buttons at the end, a single-vented back, and a 2 button-up front closure.
It measures approximately 22" from underarm to underarm, 18.25" from left shoulder to right shoulder, 30.5" from the back of neck to bottom hemline, and 22.5" from the top of shoulder to sleeve opening when laid flat.
This garment was made in Indonesia and is made of 100% wool.
The blazer comes in good pre-owned condition with faint stains and a couple of holes below the right pocket.