Help On Postal Covers Pre 1900.

Hello All. I've been busy going through my postal covers/stationary and need some help on valuations.I have Scott available but reading the posts there is some differences depending on many other factors. I think the last one is an A14. I have some from Neustadter Brothers that manufactured blue jeans and shirts. Apparently from what I can see many socialites used the address (c/o) for some reason.

I can't see an overprint on the 2nd entire, which is the one I think you're asking about so I think that it is Hawii U8, the 5 Cent Blue, U14 is the 10 Cent Black, overprinted "Provisional Government 1893" in red.

Is it possible that the addresse worked for the Neustadter Brothers, And that was the only address the sender of the stamp bearing cover knew?

Your first showing, the green on blue, is from the U311 family. U311 is on white so this should be U314.

Thanks jobi01 and littleriverphil. Sorry for the delay getting back. Very helpful. I have a few more, looking for any tips on value of postal stationary. I will scan the rest when I can. Having trouble getting the photos bigger and have to figure it out. Here's a new one I found in the pile. Thanks again.

The letter sheet with indicia featuring U.S. Grant is Scott #U293. Although there are varieties that can be identified with a better scan as to perforations and inscriptions, the general used "catalog value" is $20, probably less in your case because of the tear in the letter sheet.

The inside color of the envelope is important on the 5 cent stationery.