With respect a name on the rear of the turret - mine didnt, instead this shipping number exists. Unsure exactly what the number means, but think likely it relates to the convoy the vehicle crossed the channel on since there are other images about which show Sherman and other tanks with very similar numbers. If anyone knows what these numbers are, would love to know please.
My Firefly
Tanks awaiting shipping at Dover in 1944
Comet at Gravelines France 1944/45
Firefly Apeldoorn 1945
And another in Utrecht 1945... NOTE - THIS IS 269921, only 2 away from yours!
Probable yours will have had a similar number on the rear.
Tim