The cancel is a railroad or train cancel, so the stamp is not a postage stamp but a railroad stamp, or at least part of one. I have no idea why the bottom half would have been cut off other than just plain ignorance.
Both your and Rod's stamps are from the 1923 revenue series. They would both have been rouletted between the two halves and I believe I can see signs of this at the bottom right of your 5 franc stamp.
I believe the cancellation is commercial rather than from a railway. The first line appears to start TYPO-LITHO ... so probably from a printing firm.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2026 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited. Privacy Policy / Terms of UseAdvertise Here