The 19 is a K frame. K is the mid frame series, Models 10, 12 13, 14 ,15, 16, 17, 18, 19, etc. The L frame takes the same grips, Models 586, 686, etc.
And I found a set for mine. Tom is yours square butt or round butt? You looking for Magnas or Target grips. I have some extras as well as some Hogue grips.