I think it would have to be 1.5"-wide tape, which means the card is odd-sized.
!.5 inch wide tape would have wrapped 3/4 ( 75% ) of the way around the 2.023 inch metal barrel
Would you please measure the circumference of the barrel? Could Day have been using 2"-wide tape?
Since the circumference of the barrel is 2.023 inches...( 2 inches)....The diameter is .625 inches.... IOW 2 inch wide tape would have wrapped completely around the metal barrel. Therefore the tape was probably not 2 inches wide...
Let's see. Two-inch lifting tape would fit, therefore, by your logic, it probably wouldn't?
"He [Lt. Carl Day] then placed a strip of 2" scotch tape over
the developed print and rubbed it down before finally lifting
the tape containing the print off and placed it on a card.
He said he then compared the lift to Oswald's palm print card
and was certain that it was Oswald’s."
— First Day Evidence (1993 book by Gary Savage)
I would think Day would want as much information off that barrel as his most-appropriate-width lifting tape would give him.
How about 1 inch wide tape?..... Very simple....the barrel is 2 inches in circumference so the 1" tape would wrap half way around the barrel..... Still not what we see in CE 639......
Now lets try it with the wooden foregrip....which is half round....The bottom portion is round and the diameter is 1.32 inches, which means if there was an upper portion the circumference would be 4.14 inches.....But we can ignore the circumference....and work with the diameter ( 1.32 ") of the round lower portion of the fore grip.....1.32"( Half circumference (4.14")= 2.07 inches)
A one inch wide tape would wrap about 1/4 way around the wooden forestock ...( 4.14 inch circ) . and this works out very nicely when compared to the photo of the "palm print" as seen in CE 639....
Soooo.....It would appear that the so called palm print was lifted from the WOODEN FOREGRIP of the carcano...
The print would be about 3/4" in dimension, whereas Latonia in CE 638 circled an area that's two inches.
And that is verified by the photo it's self which records the bayonet slot that is cut into the wooden foregrip.
But if Carl Day correctly remembered he used two-inch lifting tape, then the linear impression is 1/4" across (too wide for a bayonet slot; just right for the bayonet lock on the underside of the barrel).