Quote:
Another almost identical rubber stamp version of this cancel was introduced on the Mediterranean Flight in April and was used there after.
I read somewhere, maybe this site, that there were two on board cancels for this flight.
One was used per request in advance. Presumably by collectors and dealers. The other was for actual in flight mail being posted by crew and or passengers.
I think we can assume mine is the 'per request' type.
The information I read also mentioned that one cancel was slightly smaller.