Hi all,
I was thinking about how much an out of market HP calculator worths if we pay it with another(s) out of market HP
We should consider that all of them are in mint conditions and have manuals.
I think that many of HP collectors have more than one model machine and I'm trying to encourage exchanging machines market istead use USD, can it be done?
Example,
Can we pay a 41CX with one HP15C and one HP28S?
Here is my question list
HP11C
HP15C
HP41CV
HP41CX
HP34C
HP42S
HP67
Thanks
Marx Pio