weird snap on wrench pawnshop find

[toymn6366]

found these and a actron dwell/tachometer[not in pic] what i,m wondering about is the snap on wrench its marked 1/4w wdex-100 but it is a 1/2in what its it the others are a proto1/4x3/16 a s-k 3/8x7/16 a bonney 1/2 a cornwell 9/16x5/8 $9.00 otd

 

[fourfeathers]

I believe the W stands for whitworth, and older British sizing.

 

[eborcim]

Yes, W means Whitworth and is a size designation used by some British manufacturers.

Below are a couple of links I found about the tools...

Whitworth Blog

Whitworth Dealer