[Johnson] In need of advise

[Dolce Consulting Services]

Hello all,

A friend of mine is also into collecting Johnson equipment. He has some keys
that he has collected,  and doesn't know what they are worth. Could someone
provide some assistance on this. Below is what he has,

I have
the never used hand key NO. 590;  the Speed-X Semi-Automatic
Key Cat. NO. 114 - 520 - this one has the black crinkle base;
and the Speed-X Semi-Automatic Key Cat NO. 114 - 501 - this
one is the chrome-plated model, wide base.  I have no idea as to what
the [3] would be worth, but do know a chap that said to contact him if
I was thinking about it and he would see if he could find out.

Thanks in advance.
Jim K7QI