Yes picture #3 posted is Snyder.
Have not determined its origin; i.e., when did the feature begin; was it a derivative of somebody else’s ider, (e.g., Excelsior’s truss tube joints). When was it first seen. What is the earliest bike that it is seen on. Was it a bottom bracket patent (pre-stamping bosses in a flat bar, before bending into a cylindrical shape and welding-up the seam.
If “X” is 1936; perhaps “V” might be 1934 Snyder Rollfast New York (can’t see clearly without my 17” wide flat screens).
That is the system that I based my 1935-W.
Fork may have more firm of a range in pricing; a 28” frame might be less common than 26”. Frames have more significant shipping costs. Frames less forks are like a transfer of a problem project.