Underprints

Hi Guys I havent seen any topic about underprints so I thought I start one. I will post an image of one that I have. As soon as i'am able.
So in the meanwhile if you have any interesting underprints why not show them on the community

I think that this could be an interesting topic to talk about.

Yes they are quite rare,
I have a Tattersalls underprint on KG5 issues
this is still not solved.

IIRC There were only two companies that GB allowed
to underprint their stamps under the gum, W H Everett?
I cannot recall the name right now.
Of course the NZ adverts.

Hi MrMagic.
I have mentioned some Machin underprints if you are interested - https://goscf.com/t/10785&whichpage=7#112690

If you are not already aware of this site, you may find it of interest:

http://www.underprints.com/

Thanks for the link 22 crows.
No I was not aware at all of the site. I just happened to see one of my stamps had an underprint and I didn't knew what it was. ( If I remember correctly it was a spanish stamp with both a perfin and a underprint in the back ). It is now tucked away. And at the current moment I cannot take any pictures what so ever. I will post a picture of it later..
Could it be this one rod ? wattses. ( Not my stamp on the picture thou, the name kinda resembles of W H everett )

Please excuse my ignorance, but an underprint seems to be something printed on the stamp on the back but under the gum. Is that correct?

I believe that there is a South American country that did this. Not sure which one. I thought it was Ecuador but I looked and couldn't find them.

Wattses it is, Mr Magic Bravo!
I had not seen it before today.

Found them.

There from Nicaragua.

The scan is only of the reverse. My scanner doesn't do back to back

Wow. I am never going to actually mess with my stamps again because I keep finding things on here I never knew and then have to go and look up more information. Underprints? I had never heard of these before now. I even have one (somewhere) but I just thought it was an error of some sort. I know time is the only way to learn and studying, but there is so much knowledge on this site it really makes me feel like I started collecting this morning. I am learning though so I appreciate all the threads and posts and links. Now I want to see if I can find this stamp....

I couldn't agree more! There are also tons of helpful people here who will take an interest in helping you with problems.

In case you have not seen these mrmagic, the Latvia stamps are the actual underprints as they were printed on the back of old maps:

https://goscf.com/t/17523#17523

Hong Kong is another underprinter for Commercial issues.

There are 2 types of underprints:
1) Pre-gum, is when the underprint is applied before the application of gum.
2) Post-gum, is when the underprint is applied over the gum, these can only be found in unused condition.
Used copies the gum will be destroyed!

This was amongst a gift lot from Dianne,
Underprint?
Is it? nah! could be? well maybe.......

see what you think.
It cannot see it being the result of a spray on
as it has a CDS at front