Do I have a Rare Carcano? HK 8mm Single Shot?? Pictures

[PBking51]

I was recently contemplating selling a carcano that was handed down to me by a family member. Its in my name and when i started reading on them I figured I better take up an offer for $100 while I had the chance. I notciced some markings on it, so I decided to do some research. I found about 3 articles including one on this forum that have me really excited! The inside of the barrel is very clean an no pitting, there a crack on the rear of the stock but it seems to be clean and is not loose(repair?). Also, there is very little rust on it. Can someone tell me what model Carcano I have and info about it and its history? Any Idea on Value?

Whats stamped on the gun (had to use phone to take the picture and the close ups didnt show anything):

"Cal 6,5" (stamped on rear sight)
"R.E. Terni" and a crown behind the rear sight top of rear barrel
"7,9" on very rear of barrel on top
(serial number) "H 6763" on left side of rear barrel
"1941 XIX" and "FC" on rear of barrel right side
Nazi Eagle stamped underneath the year
"HK" in a circle stamped on top of the reciever close to barrel
(serial number) "H 6763" stamped on left of reciever (H is a tad higher than numbers)
The RE Terni Crown is on the knob of the bolt

There is a wooden block that seems to match the stock in the chamber making it single shot

Note:

*There is some sort of symbol partailly covered by the stock underneath the first set of serial numbers on left of barrel

*There is a set of funky symbols mixed with the numbers 3 and 2 (???)

*There is a little symbol above the serial number on the reciever, it is clear but I have no idea what it is

*There are numbers on the rear of the stock, but it is hard to make them out


Pictures: (Again, i can not get clear close ups of markings at this time using my phone)

Information

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