At the begining just because it says valle I thought was a samuel del valle or maybe something made by his dad back in the 50s but the finishing is all wrong. too rough to be a Del Valle.

The rosin is the only original there, the other ones are who knows what, the benotto might be a benotto the problem is that when the thing went to mexico a lot of super low end was produced, and who knows what was actually produced in mexico and what was actually licensed and made in colombia so who knows. The only one IMO that worth something is the rosin but w/o the fork and decals you won't get a lot either ok?

As for the blue track bike, that thing is just old, 1960s? really rough design, I would dare to say that is or french or made by some of your locals, no fork either.

Good luck selling the rosin