Vintage Pink Western Shirt

Bought this shirt secondhand in Berkeley California. I believe the tag says Larry Nathan brand but someone who can read cursive better than me might be able to correct me! It is in near perfect condition with mother of pearl (fake or real, beats me) snap closure. Save a horse, ride a cowgirl! I tend to be a M/L and I have outgrown this shirt, I believe it would fit a size small best, maybe even XS. Happy to share measurements if someone needs. Truly a beauty.