As part of the SG SP catalogue updates we are looking at including a small section in the appendix (following the under/overprints) on embossing applied to stamps presumably as another form of security.
Currently we are only aware of those from the firm "Novelli & Co." and even these only from a handful of examples on different denominations/plates.
If anybody has or knows of ANY examples of embossing on SP stamps (Novelli or otherwise) could they please let me know:
- Stamp Issue
Plate number (if applicable)
If images are available (or could be provided at some point)
Thanks,
Andy