The painted silk banner belonging to the New Holland branch of the National Union of Railways (NUR now RMT) was discovered in storage in Doncaster several years ago.
- ARRIVAL: From left, Mayor of North East Lincolnshire Councillor Sue Pickett, Roger Whyman, Mike Burton, Brian Mummery and Doug Pickett with the banner.

The banner depicts the steam locomotive Sir Sam Fay, named after the Great Central Railway's general manager.
Roger Whyman, chairman of the museum's management committee, said: "The New Holland branch was formed before the NUR was created in 1913 by the amalgamation of three railway unions.
"The records we have been able to find suggest that this banner pre-dates the amalgamation.
"We believe this is the original banner, which was then modified after the amalgamation."