Slide Rule: Watersons Patent Double Slide Rule

Scope and Content

SLIDE RULE: Watersons Patent Double Slide Rule sold by Thomas H Watson, naval architect, Newcastle on Tyne including a speed scale and tonnage and displacement sacale.

Wooden

Conditions Governing Access

Dim cyfyngiadau/ No Restrictions

Note

Os gwelwch yn dda archebwch y dogfenau gan ddefnyddio y rhif cyfeirnod amgen (lle ddarperidd) / Please order documents using the alternative reference number (where provided)

Physical Characteristics and/or Technical Requirements

Cyflwr da /Good condition