Wilton Bullet a9450 Vise question

[shanndog68]

I have a Wilton Bullet a9450 Schiller Park.
It appears to be stamped Gua Exp 12 61
Last number is iffy.
Is this even possible? That would mean it was made in 1956 when they were still in Chicago.

Any help is greatly appreciated.

 

[Fierljeppen]

The Wilton Tool Mfg. Co. actually moved into the Schiller Park facility in the Spring of 1955.

There was a rare casting error on their first batch of 9450 "Schiller Park" vises and your vise may be one of them. Could you please post a photo from each side of the vise and the date-stamp? I've got an ongoing Wilton vise puzzle I've been working on and I'd like to add your vise to my database.

Here's a 1956 Wilton catalog no. 112 scan of your vise, for your records.