On the cap of the left it reads “Tombow Super Pen” and on the cap of the right “Zoom 505 sh”. The left cardboard box is marked with “SH-1000TC” but the left one has no marking (except “K-1Z” which can be found on other boxes and looks like some kind of generic marking). However, there is a label with “SH-2000CZ”.
Do these pencils and boxes belong together? If so, how? According to the Tombow website, the 505 sh and the box above could go together but I’m not sure.
By the way, above the grip of the right the pencil has darken a little although I haven’t used it. Does anyone know what this is and if it can be removed? I am hesitant to use a polish.
The actual pencil on the left side is most likely a Zoom 515sh (model number SH-3000LZ) because of its black clip and lightly textured finish. This is the 1988 follow-up design to the 505sh, which came out in 1987 (the capped rollerball came out first in 86).
The one on the right is a Zoom 505sh (model number SH-2000CZ). There are at least 3 versions that are differentiated by their clip design. The black grip is a hard rubber compound. I apply a little Armorall rubber protectant to keep it supple.
