1

Early pocket tag with printing on
one side used 1937-50

2

Redline selvage and heavy chainstitch cuff used until 1983

3

Hidden copper rivet used on 501xx models 1937-66

4

Early WW2 era s501xx fly
with generic button , still retaining crotch rivet

5

Offset belt loop as
seen on 501xx models 1950-66

6

Suspender buttons on pre war s501xx,used
1922-36