and i had a 1956 pacemaker with graflok and kalart side rangefinder from the factory.
i sold my copy a while back or i would quote you the page.
this book is considered the authority on Graflex.
Another source for accuracy is the Graflex Graphic Photography series by Morgan and Lester.
these camera w____s would do just about any thing for a buck OR they supported their customers by accommodating their wants.