Yes, it is Dave...it is the one I had offered for sale a few weeks ago (which one fellow has told me he wants). Apologize for any confusion. It came from a 1969 pickup but like all these (up through around 1973 or 74) it fits right in and it looks like the plug was up inside by that time. Sorry...I didn't have one of the earlier ones handy. Now everyone can see early and later.
If you want to see something interesting, I'm still working on adapting the 1995 S-10 speedometer plus tach & vacuum gauge into the 1952 speedo unit. Take a look at the screw pattern on the back side of the electronic unit (first image) compared to the screw pattern on the old 1952 speedo (next image). Not only is the angle and orientation the same, the distance between screw centers matches...although you would need to use a washer to use the smaller diameter screws:
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end