From Blue Book of Gun Values, 26th edition
Officer's Model Match (Fifth Issue)
.22LR, .22 Mag, or .38 Spl cal., 6-inch barrel, single (rare) or double action, tapered heavy barrel, nickel finish is scarce in this model, wide spur hammer, Accro sight, large walnut target grips. Mfg. 1953-1969.
100% - $575, 98% - $525, 90% - $325, etc. For .22 Mag add 100 % (approx 850 mfg).
This book is several years old; I'm sure prices are higher now. PM me if you want but I can't tell you much more than that. A professional appraisal might be nice as it sounds like you have something special.