Latvia Overprints

Can anyone offer any information on these overprints.

Thank you

As you probably know, these 1919 "Latvian" stamps were issued under Russian occupation, but were never placed in use. They can be found both perforate and imperforate. They were commonly forged, but reviewing Tyler's "Focus on Forgeries", these stamps appear to be genuine.

Scott has a note about them in the catalogue. Scott withdrew catalogue numbers for them a long time ago (they are not in my '47 catalogue), as they were never postally used.

Unfortunately, your main question- the overprints on them- I can be of no help there. Perhaps some other member has more information.

These have come up before. Check out below - the link at the end appears to be dead.

https://goscf.com/t/9090

I did some further research and found these overprints exists only type 1 forgeries.
But I still have no idea who printed them, when they were overprinted or why.