All About Pocket Knives

I had asked this question a while ago & didn't get too many answers, so here it goes again...

Does anybody know how many patterns Queen made using the poured alum frames? I have numerous Barlows & one 2-blade Jack (very much like a cigar jack pattern). Any others ? The picture was used in a different Queen question regarding if Queen made a 2-blade barlow in Winterbottom Bone, the 2-blade shown is Winterbottom Derlin the single blades are Winterbottom Bone, but still has my two examples. thanks

I have 2 of those #22 Barlow's in saw-cut delrin with the enclosed backsprings. But no info.

These are the aluminum frame Queen knives I have. I did have the jack also but I must have sold it. I am also attaching a copy of the patent. Very simple engineering.

Got this in the mail today,
Only got 4 ( now ) Queens, so don't know jack about them.
It's a alloy one peice frame too,didn't know when I bid on it.
Glad I got it will fit in with my barlow's nicely.
It's a #22


Gary.