MA-283. Massachusetts. May 5, 1780. $7. PMG Choice Uncirculated 63. Uncancelled. Signed by Loammi Baldwin. Any uncirculated example from this common Massachusetts issue is highly desirable when seen without the usual cancel. Those that are signed by Loammi Baldwin and seen at this grade level are actually quite rare. Baldwin is known as the "Father of Civil Engineering." His home has stood in Woburn, MA for 350 years.