Chuck24: You got that gun for roughly what we paid for them in 1985! Or a tad less!
I forget what the holsters went for. It was either $25 or $50. Glad I got both when I did.
I was under the impression, however flawed, that there were 5000 of these (and not all of them shipped from Lew Horton).
In addition 1 or 2 thousand were offered with a spiffy (Gould & Goodrich?) holster as there were no 3" N frame holsters common at the time.
The 3" 624 may be the first or close to the first round butt N frame as well.
Some modern off the shelf grips may not fit exactly. I had Craig Spegel custom fit mine to the frame.
The other 624's are square butt.
The Dillon catalog of a few months ago had a centerfold article on the 44 special that had some info near the end about these numbers.
I can never remember them all.
Here's what my 3" LH 624 looks like in it's BLW holster and Spegel grips (sorry the original combats are NFS):
The belt is a Galco 1.75" I wear every day whether or not I am carrying.