So there appears to be three versions of the toolkit used in 1973. Notable changes to second and third versions:

The toolkit second revision in 1973 changed:

• Black basket-weave vinyl bag with black interior (“JUSIN” markings) and string ties instead of clasps

The 1973½ 911 models toolkit changes:

• Black basket-weave vinyl bag with black interior (“JUSIN” markings) and snap buttons
• Single red screwdriver handle with reversible flat/Phillips screwdriver insert

However, I see that an early RS had the reversible flat/Phillips screwdriver insert with the red handle. Was this used for almost the entire 1973 model year, or just part of the year? Thanks for any insight.