Category Articles

Keystone Toys

This is a list that gives a description of the boat or toy, a condition number, and a value for the boat in that condition.

This is a year-to-year listing of the company locations associated with Keystone Manufacturing.

The intent of this article is to research and share the true story of Keystone Manufacturing.

The story of Keystone Manufacturing begins with three different toy companies and evolves into three separate Keystone companies.

A history of the Jacrim, Keyston, and Seaworthy manufacturing companies.

This is a timeline of boat properties that you can use to figure out the manufacture date of your treasure.

Many connecting rod arrangements have been tried over the years, and the one described here is the lightest and strongest.

The sail servo arm is a source of friction that can fray mainsail and jib sail sheets throughout a sailing season.

This is an efficient, strong sail control arm for R/C sailboats.