Your search for "SPofBOS" revealed the following:

D.B. Updike on the aims of the Society of Printers

D.B. Updike on the aims of the Society of Printers

Honor Bound: Eleanor Garvey & Michael McCurdy & Carl Zahn

Honor Bound: Eleanor Garvey & Michael McCurdy & Carl Zahn

In the School of Baskin

In the School of Baskin

Printing Office Collection

Printing Office Collection

Remarks Made to the Society of Printers (Barry Moser)

Remarks Made to the Society of Printers (Barry Moser)

Strings Attached

Strings Attached

The Fourth Quarter

The Fourth Quarter

The SP Century

The SP Century

The SP at 75

The SP at 75

The Suffolk Resolves 1774

The Suffolk Resolves 1774