About the best I can suggest is to get ahold of a copy of Meadows' "U.S. Military Holsters and Pistol Cartridge Boxes". There doesn't seem to be any mention of a Pattern 1895 holster, but some span the period of 1881-1889 in the Army holsters. The Navy didn't adopt the .38 Colts revolvers until 1889, and there are photos on p. 346, but no drawings. There is a comment in the Army revolver holster section stating that the Navy holsters for the .38 revolver were similar to the Pattern 1881 Army holsters, but without the second hole in the flap (for the S&W Schofields). Also, if I'm reading this right, the Navy holsters were worn butt rearward.
Hope this helps a bit.
Your obdt servant,