1,000-1,500 yours looks in very nice condition
X2 on the value. If it was mine, and I felt the need to shoot it, I would shoot 38s and leave the 357s for a different unloader. These 'snake guns' are all increasing in value at an alarming rate. If it was mine, I would carefully clean it and keep my eye out for the box and original grips. Congratulations on your new Colt!