Nice find, I think that those would match the requirements of playing with the Russian table equipment.
Well cues for piramid, the history behing and how the cue-building process developed, the constructions used and so on and on... It's a long but interesting story... There is so much tradition behind and when it comes to the construction some piramid cues are the most complicated out of all for any billiard game and those makers who build them are exceptional craftsmen. I'm glad I know some of them.
One of them is my friend and he builds phenomenal playing cues, some are real pieces of art. All of them are either spliced in a certain way or full spliced both at the shaft and at the butt. Some are 3/4, some one piece fullspliced and the others are even split.
Let's just mention the most obvious differences in their length, taper, diameters, weight/balance etc. to understand what one will face if...
So as the average length of a piramid cue is around 160 sm = 63" even if we are talking about even split cues the shaft length should be around 31,5".
Again if we talk about an even split cue the diameter at the joint is usually 19 mm (0,75) or slightly under. Should I continue with the weight/balance?
So one should know the game and the difference when it comes to the feeling when you have a great playing tool in your hand. I'm glad I do know what I like when it comes to the cue for piramid and I will always choose a well built full spliced in a certain way cue over cf...
There are a lot of so different reasons why I don't see cf to become very popular in piramid in a near future ... stiffness and energy transfer cf provides are demanded the most in this game though.