Examining this extract, there are multiple visual indicators suggesting that the word “not” was added later — after the original phrase “Connecticut ratified” had already been written:

Ink Tone and Aging:

The ink forming “not” appears darker and more recent than that used for “ratified.” Even allowing for photographic contrast differences, the tonal variation and sharper edges of “not” suggest it was written with a fresher quill or newer ink, possibly after the original document had already dried or aged slightly.

Alignment and Positioning:

The placement of “not” is slightly off baseline — it sits marginally higher and farther left than would occur in a continuous writing flow. This is typical of an interline or marginal addition inserted after the main entry.

Pen Pressure and Stroke Width:

The downward stroke on the “t” in “not” is heavier and more angular than any other letter in the line. The quill seems to have been pressed more firmly, possibly to make the addition conspicuous or permanent. The rest of the writing, particularly “ratified,” shows lighter, more practiced movement.

Spatial Context:

There is an unusual gap between “Connecticut” and “ratified.” It appears as though the area was intentionally left or cleared for insertion—consistent with later annotation. Early 19th-century clerks rarely left blank space mid-line unless expecting to fill it with subsequent data.

Document Texture:

Around “not,” subtle signs of surface disturbance are visible—slightly different reflectivity or grain disruption—which may indicate light abrasion or erasure prior to adding the new word. This could suggest the paper had been touched up or re-inked in that spot.

Forensic Assessment (non-legal opinion)

Based on the above characteristics, it is highly probable that “not” was added at a later date, and that the original text read simply “Connecticut ratified.”
The darker ink, altered alignment, and disturbed paper surface together strongly support the conclusion that the word “not” was an after-the-fact insertion—possibly done to alter the meaning of the record.