US Classic Stamps With Varnish Ink

Hello,

I just saw this ink for the first time (at ebay) and thought it would be good to get more knowledge about it. I never read about varnish ink, there is only one small thread here on the forum, but not only about US. Also in the Scott specialized and in Micarelli's book I didn't find the varnish ink as information for some stamps.

So is this a variety that is accepted also today? And is there any list of stamps that were issued in varnish ink? Why isn't it listed in Scott?

http://www.ebay.de/itm/GENUINE-SCOT...AOSwTM5Y3S41

http://www.ebay.de/itm/205-VAR-UNUS...pyL6ckYkkMXQ

http://www.ebay.de/itm/634e-VAR-192...ZIaEXyEEXt7A

http://srailstamps.com/scott-332-va...se-cert.html

http://www.ebay.de/itm/370-VAR-F-OG...AOSwg3FUgqF-

Also at Siegel there have been sales with varnish ink:
https://siegelauctions.com/lot_grd....thin+Results

This thread seems relevant:
https://goscf.com/t/29551

Yes, this is the thread I saw and mentioned, but it's about identifying and does not answer any of my three questions (see above).

Obviously, yes. Clearly people are buying and selling these for some time now, certificates as genuine have been issued. There has always been trading in and certification of varieties not listed in general catalogs like Scott. They are known to specialists, who actually may be the only ones who really care, and have been written up in specialist publications.



Probably not all-encompassing. There probably have not been enough confirmed (by certification) to generate any kind of census at this time. 20th Century specialists do not necessarily collaborate with 19th Century specialists, either.



That's more of a question to ask of the Scott catalog people, but they are not a research group, nor are they the last word in philately. There are many, many varieties, including color shades, that Scott does not list or mention. Scott does continue to add listings and notes, though sometimes incorrect or of dubious value. They could add varnish ink varieties sooner or later. Consider that US Scott #19b, type Ic, was known to exist for years and years, described in the literature including the key Ashbrook books published in 1938. What is now #19b is very close to type Ia but was never accepted as such by experts or specialists. It wasn't listed and given a type by Scott until 1993(!).

Thank you very much - this answers my questions. What still would be interesting is - if not a list - some information about where could have been such ink, like a range of Scott numbers or years? Perhaps there is also an article about it.

@stamperix

Do not confuse the varieties you listed in your OP, which were produced by the Bureau E&P, with the experimental prints that Russ mentioned back in 2012, such as the stamp produced by the American BNCo in 1883. No relation.

ok, thank you - but the ink looks similar though in both cases?

I asked my questions just because I wanted to know if one should look for those varieties when looking at older US stamps or if this is a variety which is not accepted like the China clay paper. Now I know that it is.