I revealed the knurl because David deserves his props.
I hesitated to post about the end cap because I knew you guys would be on my back about pics.
I'll see what I can do-- there isn't a driver avail. for my phone to connect to PC and my phone won't send pics via email. No, it isn't two coffee cans attached by string, but it is a basic device.
Fortunately, my closest neighbor is probably 350 ft away separated by forest and agrees with my desire to be left alone. Up here if your house isn't afire and you don't fill your cemetery too loudly -- you're not really there.
I promise I will make an honest effort to get pics posted-- be patient.