2 Cent Covers From 1925-1930 Questions

Hi again to all

i am always full of questions.
i have over 1500 stamped envelopes covers with postmarks from 1925 to 1930.
all have the embossed envelopes with the 2 cent washington.
i have not looked at these for about 20 years. I started last night.
it seems that the die 2, 3,and 4 have some value.
i am sorry I can not scan right now [seems things do not work when you want them to]

i tried to separate these into what can be piles [ these are my hope to be piles].
i will have to look harder at the die 2 and die 4 covers. [these are hard to see for me]

die 3 seem easier to separate [if they are really die 3]
it appears that I have about 100 type 3 dies. [very thin inner circles] [i have thin ones and do not know what is very thin]
i need some help to see if these are really type 3 dies.
i hope they are [these have the some value and this is not my luck but I have fingers crossed]

i also have about 6 that have a closed a's [the a inside area is closed in the words states and postage]
i do not see this mentioned anywhere.

i also am confused about the paper [oriental buff? blue paper?]
it is hard to see the type

i would appreciate any help.
i will look on the net to see if I can find anything.

i have also found some nice company logos and will share [if I can ever get my scanner working]


you can email me if you want dlw1955@hotmail.com or dlw1955@yahoo.com

your questioning friend dan

ps I did get the scanner to work but it will not download to the site.
i will email if you mail me thanks

dan