551 115 B15 pencil eraser
Year: 1979

B15 Pencil eraser
Eraser for pencil on all drawing surfaces.

"B" Series erasers remove pencil lines from all
quality drawing surfaces by a non-abrasive action.
They will not damage the surface or diminish a
line drawn in ink and are therefore ideal
for the draughtsman and artist.

Strangely this small eraser, B15, is not listed in any rotring catalogs from 1980. forward.
Seem to be offered only in college sets.

Numbering seem to be not from the size of the eraser but quantity in box.
So B20 is large and offered in 20 piece box, and B30 small and offered in 30 piece box.

Was this one named B15 for being offered in box of 15 still needs to be discovered.
B type of erasers go way back to 1977.

551 115? B15 Pencil eraser
551 120 B20 Large pencil eraser
551 130 B30 Small pencil eraser

❮ ❯