Jack;
Based on your post, I have my local library tracking down a copy of Arms & Accoutrements of the Mounted Police 1873-1973.
The DA .38 (No. 2 size) 3rd model was manufactured 1884-1895, with 203,700 produced. (They are very common down here and in excellent condition will go for about $ 300.)
The 2nd Safety Hammerless, 1887-1890, with 37,350 produced.
3rd Safety Hammerless, 1890-1898, with 73,500 produced.
4th Safety Hammerless, 1898-1907, with 104,000 produced.
Is there any mention of finish (blue or nickel) or barrel length (3 1/4" most common, 4 & 5 inch somewhat scarce and 6 in scarce to rare.)?
The holsters that you pictured are black. Mine are brown but very close in shape.
Books