Speedline –
Senior Maxima & Slender Maxima

1937 — 1942

INTRODUCTION (1937)

In 1937 the Oversize was replaced by the streamlined Senior Maxima (approx. 16 mm wide, 139 mm long).

The earlier uneven-banded Senior was discontinued and replaced with the Slender Maxima (approx. 14 mm wide, 135 mm long).

Initially these pens featured a 5 mm wide cap band engraved with raised "VACUMATIC" lettering — a rare and short-lived production. See: Vacumatic-banded models.

Within approximately ten weeks the raised-letter band was replaced by the now-classic chevron pattern.

CLIP & SECTION CHANGES

In 1939 the Blue Diamond clip was introduced, signifying a lifetime guarantee for the original owner.

From this point:

• Sections became black
• Clip screws became black
• Tassie screws became black

Prior to 1939:

• Arrow clip (non-blue diamond)
• Striped section matching body

Arrow clip (1932–1939) and Blue Diamond clip (1939–1948).

SENIOR MAXIMA

Senior Maxima (1937–1942).

SLENDER MAXIMA

Slender Maxima (renamed 1940).

LATER DEVELOPMENTS

In 1941, blue was introduced as a colour option, but Slender Maximas in blue are incredibly rare and can most likely not be counted as made in standard production.

In 1942, the broad-banded Senior Maxima and Slender Maxima were discontinued.

The Senior Maxima survived in redesigned form with:

• Plastic filler rod
• Rounded blind cap

Often referred to as the Single Jewel Senior Maxima .