505 508 Hi-polymer leads 0.5mm HB
Year: 1983.
Description
Hi-polymer leads 0.5mm HB - 12 pieces
For tracing paper and vellum.
Available in 2B, B, HB, F, H, 2h, 3H, 4H hardness and size 0.3, 0.5, 0.7mm
And for film HB, H, 5H
Same design was used until early 90s when label was changed.
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