The old film camera
PencilChallenging

Practice a thread spool with clear forms and selected overlaps. Curve a small set of widely spaced lines around the cylinder. Leave the broad spaces open. Add a trailing loop and the small top hole. Keep graphite beneath the rim overlaps.
Draw matching top and lower ellipses with a short cylinder between them. Keep their angles consistent.
Curve a small set of widely spaced lines around the cylinder. Leave the broad spaces open.
Add a trailing loop and the small top hole. Keep graphite beneath the rim overlaps.
A small thing to tryFlatten the lower ellipse to the same degree as the upper one so the spool sits naturally.