"I understand from SCSW that they didn't make but a few of these, and even fewer with the 4" barrel."
Most were 2.5/3" or 6.5".
The 4" versions are quite uncommon. The 624 4" is a lot more common.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.