Welcome to this forum!

You have not only a very high original condition 38 Terrier, it's a highly collectible version/vintage. I'd put the value in the $800 ballpark.

It's known by collectors as a Post WW II Transitional I frame .38 Terrier (which denotes the 2” barrel and rd butt) '6 screw' version, with pre war style round sight, small rd butt, flat leaf mainspring, and small trigger guard; post war "Service" style grips and medallions; and #4 style cyl release thumb piece. Based on the serial # it shipped in Nov. 1950.

This model was 1st introduced in 1936 as a more compact and concealable version of the .38 Regulation Police which had longer sq butt grips and longer barrels.

It's .38 S&W cartridge popularity was eclipsed by the slightly more powerful 38 S&W Special in the .38 Chiefs Special J frame. Therefore sales diminished until about 1974 when eventually discontinued.

Shoot and enjoy. All currently made ammo is safe to shoot in it and some more powerful loadings still make it a viable self defense handgun.

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Jim
S&WCA #819