I have nine.

The smallest is...

Little Giant
Webster
DICTIONARY
Self
Pronouncing

1943
About half the thickness of a pack of playing cards
and weighing in at less than an ounce. 188 pages, 8,000 definition,

up to the biggest...

Twentieth Century
DICTIONARY
Unabridged

1937
Heav1ly bound with 2492 pages and about 250,000
words and weighting in at about 35 pounds
or at 7,428 words per pound.

I read the ones in the middle of my collection,
the ones with the BIG PRINT.