here you go. (this is a 2 bladed, but same frame).
Next to a Tadpole barlow. This is a 3 inch handled knife.
With a #23
The yellow handled knife on the right is a single bladed #23 for comparison. A tiny bit thicker than the single bladed #73 should be just based on the blade thickness and back spring.
I guess I don't have any in hand pics of the patter that I can find.
The feel in hand is pretty good. I wear a 2XL glove (which are a bit tight). The 73 pattern is just about right in my hand for a medium pocket knife. Not too small, enough handle to grip and use. A single bladed would be even more comfortable (the exposed spine of the 2nd blade makes the pattern a little less hand friendly, especially if you are cutting with more force, like making fuzz sticks etc).
In hand wise, it is pretty close to this Canoe/Gunboat by Queen. (not the same handle shape, but the handle is roughly the same length if I remember correctly, sorry, closest in length of handle I think I have a pic of right now, and don't have the time to grab the camera).
the 73 frame is just a great middle ground size for a user. Pretty "people" friendly as well.
the single blade 23 is still relatively slim, and trim in hand.
The 2 bladed 23 is a handful, and much meatier in the hand and pocket.
The #73 pattern does not feel big or clunky even with both blades. So the single would feel only that much more svelt and pocketable.
I don't really like the liner lock's because the liner lock design leaves the liner above the rest of the handle, and in my hand it feels a bit in the way. Not a ton, but just a bit. Having it exposed makes me feel as if it would be easy to disengage when you needed it to stay put. This is just conjecture. I have had a liner lock do this, when the lock was not even exposed higher than the handle scales (where it cut me).
I just like the pattern as a slip joint. I have not felt under knifed without the locking blade.
The blades are pretty thin, and pointy from GEC. But strong enough to make a decent user knife. I can't think of anything I would need a slip joint for, that the blade would not do.