Here's an interesting look at past cataloger's use of these terms.
In Stack's Roper Collection sale (December 1983) seen here:
They give a little blurb in the forward about use of the terms Very Rare and Extremely Rare:
And then, just 2 pages later, they hit us with this:
My conclusion: Clearly Excessively Rare connotes greater rarity than Extremely Rare, but even the catalogers using these terms did not bother to take the time to define all of them.
Comments
In Stack's Roper Collection sale (December 1983) seen here:
They give a little blurb in the forward about use of the terms Very Rare and Extremely Rare:
And then, just 2 pages later, they hit us with this:
My conclusion: Clearly Excessively Rare connotes greater rarity than Extremely Rare, but even the catalogers using these terms did not bother to take the time to define all of them.
The End.
#2
#3
#4
#5
#6
#7
#8
#9