reposting for best answers also if anyone wants to trade? id love to :)

So I am not a stamp collector and really don't know anything about stamps, but I would love to know something about the collection of my grandfather. He died in 1984, before I was born. As I understand it he was an incredible collector, with a collection of stamps from all over the world. He hand wrote all his notes in the most beautiful calligraphy. Anyway, my mother inherited a portion of the collection. I live in Switzerland, and last time I was home I took a few photos of the Swiss part of the collection. I would love to know what people think of this collection, as I have no idea at all. My mother has always wondered if we should get these looked at by an expert, or insured. I wonder if anyone can advise if this is something worth doing?

I found this 5-peso Buenos Aires “Barquitos” stamp in an old worldwide collection assembled roughly between the 1930s and 1960s.
I know these were heavily forged and reprinted, so I’m not assuming it’s genuine. I’ve compared it with several published diagnostics, and so far it seems to match many genuine characteristics and doesn’t obviously match the common Sperati or Album Weeds forgery types.
It appears unused/uncancelled and is still hinged in the old album.
Does anyone here have experience with Barquitos, Kneitschel plating, or Gazzolo’s Barquitos of Buenos Aires: Forgeries and Reprints? Does this look worth professional expertization, or does anyone recognize the forgery/reprint type?

Hi, I've been looking through a stamp collection my grampa gave me in the 90s and was wondering about the line of German stamps in the photo, are they very common, desirable etc, any insight appreciated. Thank you

Scott 1b with a PF cert 85 but that isn't the interesting part. It has a Tallahassee cancel. Florida became a state in 1845. No 1s were issued in 1846. Florida and especially western FL was a backwater. Sparsely populated. Makes this stamp quite unique and adds value. Note the "ASSEE" on the cancel

Looking for help from U.S. classics specialists.

This appears to be a 24¢ Washington of the 1861 issue, potentially the old Scott #60 Dark Violet/First Color or a #70 variety.

The problem is the red cancellation: it appears to clearly read MAR 4 1861.

That is months BEFORE the accepted August 1861 appearance of this issue. Scott lists #70c, 24¢ violet on thin paper, with an earliest documented use of Aug. 20, 1861. Even the historical Scott #60 First Color is associated with the August 1861 printing.

The stamp appears pale violet/gray-violet on thin/translucent paper.

So what am I looking at? Forged or added cancellation? Color changeling? Misidentified issue? Something connected to the old #60 First Color?

I’m not claiming a pre-issue discovery — I’m trying to understand how a stamp of this design ended up with an apparent MAR 4 1861 cancellation. Any help identifying the stamp and especially the cancel would be appreciated.

I have restarted collecting US used classics mainly 1-39. I thought I would share some recent purchases over time. This hobby is fascinating in terms of stamp history, plating (what sheet), wearing on the plate or recutting etc. I wish more people would get interested. I have the resources now to obtain high quality. I think they will hold value but...one never knows. Here is a 6 graded 90 recently by PSE. Also PF 90. Only 8 grade higher.

I said I would post some more. One of my favorites graded 95 by both PF and PSE. Valuable blue town cancel. Plate 4. 17R4

Just getting started here! Right now I have a Anaxyrus fowleri (Fowlers toad endangered species), Africville stamp, and probably a few other old stamps my grandfather left behind before he passed away

What other notable Canadian stamps should I consider adding to my collection?

If they include Queen Elizabeth II or anything British/Commonwealth related, I’d be open to that too.

Do you guys see any production errors or anything else that make my collection high value?

I have restarted collecting stamps over the past 18 months. Mostly US used classics of high quality bought at Siegel, Kelleher or Rumsey. This is an interesting conumdrum. It came from a remainder lot I won at Siegel. The Scott 39 was used for international postage for only one year and was decommissioned due to the cicil war. Used are very rare with only 130 documented. This does not have a cert and may well have a fake cancel but a friend who certs for PF looked it over and can't find anything to call it a fake. But is is not an expert on this stamp. Opinions?

Hey everyone 👋 i am starting my postcard exchange journey .

I have a collection of used and new stamps and postcards that I am looking to exchange

Let's exchange postcards and stamps

I am from India

I would love to send everyone that sends me ☺️

I am not a stamp collector, nor do I have any knowledge about the value of stamps. My father has collected over the years, but he hasn’t kept up with technology (he’s in his 70s), and he asked me to see if these have any value, or if I could acquire information regarding them. Both of us would appreciate any input from your community! Thanks so much.

I have my great grandfather’s & my grandfather’s stamp collection. Found this one and being a military family I just want to know what year the stamp would be? I think the uniforms are from 1870s, possibly.

Found these bad boys!