I am trying to identify a snare I have had for a long time. chrome , 10 lug, 5"x14", black & brass badge w/6 digit serial number. Snares extend beyond shell, with a knurled knob to take slack out of snares. There are strainers on each side with knurled knobs to adjust snare pressure on the head. Finally, there is a rod through the shell that moves the strainers simutaneously when the throwoff is used. I think I bought this drum in 1969, maybe 1970. Can anybody tell me what this is? I sure would like to know.