Greetings Community!! New Guy Here To Gain Knowledge On What I've Inherited

I recently purchased a box full of goodies!! Here's a few of MANY I have!
Apologies for the mass images!

Welcome.
Don

Thanks!!

1st Picture is a "Mourning Cover" (Black border)

Last picture.
Lovely Southbridge SON socked on the nose Postmark
seen listed $3-$15 not seen an image, your stamps are generally in poor shape.

3 x Queen Victoria Great Britain all have "postmarks on printed matter"
(which I collect)
FB = foreign branch
NPB = Newspaper branch

The numeral 2 Victoria (australia) I am having trouble with
I thought maybe Kilmore (200 copies known)
but ends in a "G" so not that.
I need to revisit my records.

1d Orange Brown Victoria
Barred Numeral 2

(Take with a pinch of salt) I am learning too.......

Looks like Geelong scarcity=R
=51 to 100 copies recorded.
You'll need to confirm from a specialist.
Could be 2nd 6th or 10th duplex...

Guess 6th Duplex Type 540

I do appreciate you and how you broke that down for me. Just from what you wrote I actually have a more clear understanding of this than what I've known. So are you saying the orange/brown Victoria is scarce? I have no idea what you mean by duplex and things alike

2nd to last image is a Revenue stamp, it's not used for postage. It has a great circular cancels on it but unfortunately the condition is bad. In the image above it the right 2 stamps are Austrian newspaper stamps, they're the 2 with the X's in the corners.

Got it thanks

Well, 51-100 examples recorded...yes.

How that translates to $ is another thing,
to the dedicated Postmark collector, the desire would be strong to have that amongst the collection, but value really unknown $3 - $20 perhaps, but that is a guess.

"Duplex" means 2 of anything, postmark has 2 parts, the "killer" and the date and location part.

Understood thanks!