Spencer rifle serial number check please

[Rim fire]

I would like to check serial number 4011.  Thanks as always.

[Two Flints]

Hello rim fire,

Your Spencer Rifle serial # 4011 . . . in my SRS Books I find,

Spencer Rifle serial # 4010 issued to Company D, 5th New York Volunteer Cavalry on April 22, 1864 - big jumps in serial #s above (4381) and below  (3874)  serial #4010

AND I ALSO FIND,

Spencer Rifle serial # 4012 issued to Company K, 9th Michigan Volunteer Cavalry in 1865 (no day or month given)
"                "         # 4013  "                                        "                                 "                        "  
"                "         # 4019  "                                        "                                 "                        "    

And I know you've read my disclaimer  

Two Flints