Fit is as follows:
513-colt Woodsman 6",Challenger & Huntsman as well.
519-Colt Commander automatic
532- 4" N frame S&W-models 27,28,20,58 and 1926 & 1950 Military
577- Ruger .44 Mag. Single action with 6 1/2" barrel
607-S&W model 39 auto
641-Ruger Mk. I bull barrel w/out brake
657-Ruger Super Single Six 6 1/2"
I couldn't find any other name referenced in Lawrence catalogs-it's a pouch type holster with safety strap and leather tie down thong.
Regards,
turnerriver

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turnerriver